diff --git a/book.py b/book.py
index 38fa020..fde854d 100644
--- a/book.py
+++ b/book.py
@@ -306,7 +306,10 @@ class Book(tree(separator='/'), Workflow, ModelSQL, ModelView):
     def write(cls, *args):
         """ deny update if book is not 'open'
         """
+        ConfigUser = Pool().get('cashbook.configuration_user')
+
         actions = iter(args)
+        to_write_config = []
         for books, values in zip(actions, actions):
             for book in books:
                 # deny btype-->None if lines not empty
@@ -326,8 +329,23 @@ class Book(tree(separator='/'), Workflow, ModelSQL, ModelView):
                             bookname = book.rec_name,
                             state_txt = book.state_string,
                             ))
+
+                # if owner changes, remove book from user-config
+                if 'owner' in values.keys():
+                    if book.owner.id != values['owner']:
+                        for x in ['defbook', 'book1', 'book2', 'book3',
+                            'book4', 'book5']:
+                            cfg1 = ConfigUser.search([
+                                    ('iduser.id', '=', book.owner.id),
+                                    ('%s.id' % x, '=', book.id),
+                                ])
+                            if len(cfg1) > 0:
+                                to_write_config.extend([ cfg1, {x: None} ])
         super(Book, cls).write(*args)
 
+        if len(to_write_config) > 0:
+            ConfigUser.write(*to_write_config)
+
     @classmethod
     def delete(cls, books):
         """ deny delete if book has lines
diff --git a/configuration.py b/configuration.py
index 2dc986e..0566a64 100644
--- a/configuration.py
+++ b/configuration.py
@@ -15,10 +15,6 @@ field_done = fields.Boolean(string='Done',
     help='Show cashbook lines in Done-state.')
 field_catnamelong = fields.Boolean(string='Category: Show long name',
     help='Shows the long name of the category in the Category field of a cash book line.')
-field_defbook = fields.Many2One(string='Default Cashbook',
-    help='The default cashbook is selected when you open the booking wizard.',
-    model_name='cashbook.book', ondelete='SET NULL',
-    domain=[('btype', '!=', None)])
 
 
 class Configuration(ModelSingleton, ModelSQL, ModelView, UserMultiValueMixin):
@@ -40,7 +36,42 @@ class Configuration(ModelSingleton, ModelSQL, ModelView, UserMultiValueMixin):
     checked = fields.MultiValue(field_checked)
     done = fields.MultiValue(field_done)
     catnamelong = fields.MultiValue(field_catnamelong)
-    defbook = fields.MultiValue(field_defbook)
+    defbook = fields.MultiValue(fields.Many2One(string='Default Cashbook',
+        help='The default cashbook is selected when you open the booking wizard.',
+        model_name='cashbook.book', ondelete='SET NULL',
+        domain=[
+            ('btype', '!=', None), ('state', '=', 'open'),
+            ]))
+    book1 = fields.MultiValue(fields.Many2One(string='Cashbook 1',
+        help='Cash book available in selection dialog.',
+        model_name='cashbook.book', ondelete='SET NULL',
+        domain=[
+            ('btype', '!=', None), ('state', '=', 'open'),
+            ]))
+    book2 = fields.MultiValue(fields.Many2One(string='Cashbook 2',
+        help='Cash book available in selection dialog.',
+        model_name='cashbook.book', ondelete='SET NULL',
+        domain=[
+            ('btype', '!=', None), ('state', '=', 'open'),
+            ]))
+    book3 = fields.MultiValue(fields.Many2One(string='Cashbook 3',
+        help='Cash book available in selection dialog.',
+        model_name='cashbook.book', ondelete='SET NULL',
+        domain=[
+            ('btype', '!=', None), ('state', '=', 'open'),
+            ]))
+    book4 = fields.MultiValue(fields.Many2One(string='Cashbook 4',
+        help='Cash book available in selection dialog.',
+        model_name='cashbook.book', ondelete='SET NULL',
+        domain=[
+            ('btype', '!=', None), ('state', '=', 'open'),
+            ]))
+    book5 = fields.MultiValue(fields.Many2One(string='Cashbook 5',
+        help='Cash book available in selection dialog.',
+        model_name='cashbook.book', ondelete='SET NULL',
+        domain=[
+            ('btype', '!=', None), ('state', '=', 'open'),
+            ]))
 
     @classmethod
     def multivalue_model(cls, field):
@@ -49,7 +80,8 @@ class Configuration(ModelSingleton, ModelSQL, ModelView, UserMultiValueMixin):
         pool = Pool()
 
         if field in ['date_from', 'date_to', 'checked', 'done',
-            'catnamelong', 'defbook']:
+            'catnamelong', 'defbook', 'book1', 'book2',
+            'book3', 'book4', 'book5']:
             return pool.get('cashbook.configuration_user')
         return super(Configuration, cls).multivalue_model(field)
 
@@ -87,7 +119,54 @@ class UserConfiguration(ModelSQL, UserValueMixin):
     checked = field_checked
     done = field_done
     catnamelong = field_catnamelong
-    defbook = field_defbook
+    defbook = fields.Many2One(string='Default Cashbook',
+        help='The default cashbook is selected when you open the booking wizard.',
+        model_name='cashbook.book', ondelete='SET NULL',
+        domain=[
+            ('btype', '!=', None),
+            ('state', '=', 'open'),
+            ('owner.id', '=', Eval('iduser', -1))
+        ], depends=['iduser'])
+    book1 = fields.Many2One(string='Cashbook 1',
+        help='Cash book available in selection dialog.',
+        model_name='cashbook.book', ondelete='SET NULL',
+        domain=[
+            ('btype', '!=', None),
+            ('state', '=', 'open'),
+            ('owner.id', '=', Eval('iduser', -1))
+        ], depends=['iduser'])
+    book2 = fields.Many2One(string='Cashbook 2',
+        help='Cash book available in selection dialog.',
+        model_name='cashbook.book', ondelete='SET NULL',
+        domain=[
+            ('btype', '!=', None),
+            ('state', '=', 'open'),
+            ('owner.id', '=', Eval('iduser', -1))
+        ], depends=['iduser'])
+    book3 = fields.Many2One(string='Cashbook 3',
+        help='Cash book available in selection dialog.',
+        model_name='cashbook.book', ondelete='SET NULL',
+        domain=[
+            ('btype', '!=', None),
+            ('state', '=', 'open'),
+            ('owner.id', '=', Eval('iduser', -1))
+        ], depends=['iduser'])
+    book4 = fields.Many2One(string='Cashbook 4',
+        help='Cash book available in selection dialog.',
+        model_name='cashbook.book', ondelete='SET NULL',
+        domain=[
+            ('btype', '!=', None),
+            ('state', '=', 'open'),
+            ('owner.id', '=', Eval('iduser', -1))
+        ], depends=['iduser'])
+    book5 = fields.Many2One(string='Cashbook 5',
+        help='Cash book available in selection dialog.',
+        model_name='cashbook.book', ondelete='SET NULL',
+        domain=[
+            ('btype', '!=', None),
+            ('state', '=', 'open'),
+            ('owner.id', '=', Eval('iduser', -1))
+        ], depends=['iduser'])
 
     @classmethod
     def default_checked(cls):
diff --git a/locale/de.po b/locale/de.po
index ba68660..ab6761f 100644
--- a/locale/de.po
+++ b/locale/de.po
@@ -1090,6 +1090,46 @@ msgctxt "help:cashbook.configuration,defbook:"
 msgid "The default cashbook is selected when you open the booking wizard."
 msgstr "Das Standardkassenbuch wird beim Öffnen des Buchungswizards ausgewählt."
 
+msgctxt "field:cashbook.configuration,book1:"
+msgid "Cashbook 1"
+msgstr "Kassenbuch 1"
+
+msgctxt "help:cashbook.configuration,book1:"
+msgid "Cash book available in selection dialog."
+msgstr "in Auswahldialog verfügbares Kassenbuch."
+
+msgctxt "field:cashbook.configuration,book2:"
+msgid "Cashbook 2"
+msgstr "Kassenbuch 2"
+
+msgctxt "help:cashbook.configuration,book2:"
+msgid "Cash book available in selection dialog."
+msgstr "in Auswahldialog verfügbares Kassenbuch."
+
+msgctxt "field:cashbook.configuration,book3:"
+msgid "Cashbook 3"
+msgstr "Kassenbuch 3"
+
+msgctxt "help:cashbook.configuration,book3:"
+msgid "Cash book available in selection dialog."
+msgstr "in Auswahldialog verfügbares Kassenbuch."
+
+msgctxt "field:cashbook.configuration,book4:"
+msgid "Cashbook 4"
+msgstr "Kassenbuch 4"
+
+msgctxt "help:cashbook.configuration,book4:"
+msgid "Cash book available in selection dialog."
+msgstr "in Auswahldialog verfügbares Kassenbuch."
+
+msgctxt "field:cashbook.configuration,book5:"
+msgid "Cashbook 5"
+msgstr "Kassenbuch 5"
+
+msgctxt "help:cashbook.configuration,book5:"
+msgid "Cash book available in selection dialog."
+msgstr "in Auswahldialog verfügbares Kassenbuch."
+
 msgctxt "field:cashbook.configuration,date_from:"
 msgid "Start Date"
 msgstr "Beginndatum"
@@ -1170,6 +1210,46 @@ msgctxt "help:cashbook.configuration_user,defbook:"
 msgid "The default cashbook is selected when you open the booking wizard."
 msgstr "Das Standardkassenbuch wird beim Öffnen des Buchungswizards ausgewählt."
 
+msgctxt "field:cashbook.configuration_user,book1:"
+msgid "Cashbook 1"
+msgstr "Kassenbuch 1"
+
+msgctxt "help:cashbook.configuration_user,book1:"
+msgid "Cash book available in selection dialog."
+msgstr "in Auswahldialog verfügbares Kassenbuch."
+
+msgctxt "field:cashbook.configuration_user,book2:"
+msgid "Cashbook 2"
+msgstr "Kassenbuch 2"
+
+msgctxt "help:cashbook.configuration_user,book2:"
+msgid "Cash book available in selection dialog."
+msgstr "in Auswahldialog verfügbares Kassenbuch."
+
+msgctxt "field:cashbook.configuration_user,book3:"
+msgid "Cashbook 3"
+msgstr "Kassenbuch 3"
+
+msgctxt "help:cashbook.configuration_user,book3:"
+msgid "Cash book available in selection dialog."
+msgstr "in Auswahldialog verfügbares Kassenbuch."
+
+msgctxt "field:cashbook.configuration_user,book4:"
+msgid "Cashbook 4"
+msgstr "Kassenbuch 4"
+
+msgctxt "help:cashbook.configuration_user,book4:"
+msgid "Cash book available in selection dialog."
+msgstr "in Auswahldialog verfügbares Kassenbuch."
+
+msgctxt "field:cashbook.configuration_user,book5:"
+msgid "Cashbook 5"
+msgstr "Kassenbuch 5"
+
+msgctxt "help:cashbook.configuration_user,book5:"
+msgid "Cash book available in selection dialog."
+msgstr "in Auswahldialog verfügbares Kassenbuch."
+
 
 ##################
 # cashbook.recon #
diff --git a/locale/en.po b/locale/en.po
index 5d58001..338f7cf 100644
--- a/locale/en.po
+++ b/locale/en.po
@@ -1022,6 +1022,46 @@ msgctxt "help:cashbook.configuration,defbook:"
 msgid "The default cashbook is selected when you open the booking wizard."
 msgstr "The default cashbook is selected when you open the booking wizard."
 
+msgctxt "field:cashbook.configuration,book1:"
+msgid "Cashbook 1"
+msgstr "Cashbook 1"
+
+msgctxt "help:cashbook.configuration,book1:"
+msgid "Cash book available in selection dialog."
+msgstr "Cash book available in selection dialog."
+
+msgctxt "field:cashbook.configuration,book2:"
+msgid "Cashbook 2"
+msgstr "Cashbook 2"
+
+msgctxt "help:cashbook.configuration,book2:"
+msgid "Cash book available in selection dialog."
+msgstr "Cash book available in selection dialog."
+
+msgctxt "field:cashbook.configuration,book3:"
+msgid "Cashbook 3"
+msgstr "Cashbook 3"
+
+msgctxt "help:cashbook.configuration,book3:"
+msgid "Cash book available in selection dialog."
+msgstr "Cash book available in selection dialog."
+
+msgctxt "field:cashbook.configuration,book4:"
+msgid "Cashbook 4"
+msgstr "Cashbook 4"
+
+msgctxt "help:cashbook.configuration,book4:"
+msgid "Cash book available in selection dialog."
+msgstr "Cash book available in selection dialog."
+
+msgctxt "field:cashbook.configuration,book5:"
+msgid "Cashbook 5"
+msgstr "Cashbook 5"
+
+msgctxt "help:cashbook.configuration,book5:"
+msgid "Cash book available in selection dialog."
+msgstr "Cash book available in selection dialog."
+
 msgctxt "field:cashbook.configuration,date_from:"
 msgid "Start Date"
 msgstr "Start Date"
@@ -1098,6 +1138,46 @@ msgctxt "help:cashbook.configuration_user,defbook:"
 msgid "The default cashbook is selected when you open the booking wizard."
 msgstr "The default cashbook is selected when you open the booking wizard."
 
+msgctxt "field:cashbook.configuration_user,book1:"
+msgid "Cashbook 1"
+msgstr "Cashbook 1"
+
+msgctxt "help:cashbook.configuration_user,book1:"
+msgid "Cash book available in selection dialog."
+msgstr "Cash book available in selection dialog."
+
+msgctxt "field:cashbook.configuration_user,book2:"
+msgid "Cashbook 2"
+msgstr "Cashbook 2"
+
+msgctxt "help:cashbook.configuration_user,book2:"
+msgid "Cash book available in selection dialog."
+msgstr "Cash book available in selection dialog."
+
+msgctxt "field:cashbook.configuration_user,book3:"
+msgid "Cashbook 3"
+msgstr "Cashbook 3"
+
+msgctxt "help:cashbook.configuration_user,book3:"
+msgid "Cash book available in selection dialog."
+msgstr "Cash book available in selection dialog."
+
+msgctxt "field:cashbook.configuration_user,book4:"
+msgid "Cashbook 4"
+msgstr "Cashbook 4"
+
+msgctxt "help:cashbook.configuration_user,book4:"
+msgid "Cash book available in selection dialog."
+msgstr "Cash book available in selection dialog."
+
+msgctxt "field:cashbook.configuration_user,book5:"
+msgid "Cashbook 5"
+msgstr "Cashbook 5"
+
+msgctxt "help:cashbook.configuration_user,book5:"
+msgid "Cash book available in selection dialog."
+msgstr "Cash book available in selection dialog."
+
 msgctxt "model:cashbook.recon,name:"
 msgid "Cashbook Reconciliation"
 msgstr "Cashbook Reconciliation"
diff --git a/view/configuration_form.xml b/view/configuration_form.xml
index 36c5e77..aa870e4 100644
--- a/view/configuration_form.xml
+++ b/view/configuration_form.xml
@@ -15,6 +15,18 @@ this repository contains the full copyright notices and license terms. -->
     <separator id="sepenterbook" colspan="4" string="Enter Booking Wizard"/>
     <label name="defbook"/>
     <field name="defbook"/>
+    <label name="book1"/>
+    <field name="book1"/>
+
+    <label name="book2"/>
+    <field name="book2"/>
+    <label name="book3"/>
+    <field name="book3"/>
+
+    <label name="book4"/>
+    <field name="book4"/>
+    <label name="book5"/>
+    <field name="book5"/>
 
     <separator id="sepcb" colspan="4" string="Cashbook"/>
     <label name="catnamelong"/>
diff --git a/wizard_booking.py b/wizard_booking.py
index 4a383d1..27304c9 100644
--- a/wizard_booking.py
+++ b/wizard_booking.py
@@ -134,11 +134,17 @@ class EnterBookingWizard(Wizard):
 
         cfg1 = Configuration.get_singleton()
 
+        book_ids = []
+        for x in ['defbook', 'book1', 'book2', 'book3', 'book4', 'book5']:
+            if getattr(cfg1, x, None) is not None:
+                book_ids.append(getattr(cfg1, x, None).id)
+
         result = {
             'cashbooks': [x.id for x in Cashbook.search([
                     ('state', '=', 'open'),
                     ('btype', '!=', None),
                     ('owner.id', '=', Transaction().user),
+                    ('id', 'in', book_ids),
                 ])],
             'bookingtype': getattr(self.start, 'bookingtype', 'out'),
             'cashbook': getattr(getattr(cfg1, 'defbook', None), 'id', None),