diff --git a/extension/Documentation/Manual.rst b/extension/Documentation/Manual.rst
index 86ffd44c49bcba3b8f2166ce9f4dc69784ffdb13..43ace6634d30c8c402b52e7af22c5ba3cf50527f 100644
--- a/extension/Documentation/Manual.rst
+++ b/extension/Documentation/Manual.rst
@@ -461,13 +461,13 @@ Extension Manager: QFQ Configuration
 +-------------------------------+-------------------------------------------------------+----------------------------------------------------------------------------+
 | cssClassQfqFormBody           | qfq-color-grey-2                                      | Wrap around FormElements: CSS Class, typically a background color.         |
 +-------------------------------+-------------------------------------------------------+----------------------------------------------------------------------------+
-| formBsColumns                 | 12                                                    | The whole form will be wrapped in 'col-md-??'. Default is 12 for 100%.     |
+| formBsColumns                 | col-md-12 col-lg-10                                   | The whole form will be wrapped. See `bs-custom-field-width`_               |
 +-------------------------------+-------------------------------------------------------+----------------------------------------------------------------------------+
-| formBsLabelColumns            | 3                                                     | Default number of BS columns for the 'label'-column.                       |
-+-------------------------------+-------------------------------------------------------+----------------------------------------------------------------------------+
-| formBsInputColumns            | 6                                                     | Default number of BS columns for the 'input'-column.                       |
-+-------------------------------+-------------------------------------------------------+----------------------------------------------------------------------------+
-| formBsNoteColumns             | 3                                                     | Default number of BS columns for the 'note'-column.                        |
+| formBsLabelColumns            | col-md-3 col-lg-3                                     | The column get the width. See `bs-custom-field-width`_                     |
++-------------------------------+-------------------------------------------------------+                                                                            |
+| formBsInputColumns            | col-md-6 col-lg-6                                     |                                                                            |
++-------------------------------+-------------------------------------------------------+                                                                            |
+| formBsNoteColumns             | col-md-3 col-lg-3                                     |                                                                            |
 +-------------------------------+-------------------------------------------------------+----------------------------------------------------------------------------+
 | extraButtonInfoInline         | <img src="info.png">                                  | Image for `extraButtonInfo`_ (inline).                                     |
 +-------------------------------+-------------------------------------------------------+----------------------------------------------------------------------------+
@@ -2113,7 +2113,7 @@ Definition
 |BS Label Columns         | The bootstrap grid system is based on 12 columns. The sum of *bsLabelColumns*,                                                                     |
 +-------------------------+ *bsInputColumns* and *bsNoteColumns* should be 12. These values here are the base values                                                           |
 |BS Input Columns         | for all *FormElements*. Exceptions per *FormElement* can be specified per *FormElement*.                                                           |
-+-------------------------+ Default: label=3, input=6, note=3. See `form-layout`_.                                                                                             |
++-------------------------+ Default: label=col-md-3, input=col-md-6, note=col-md-3. See `form-layout`_.                                                                        |
 |BS Note Columns          |                                                                                                                                                    |
 +-------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------+
 |multiMode                | NOT IMPLEMENTED - 'none, horizontal, vertical' (Default 'none')                                                                                    |
@@ -2288,7 +2288,7 @@ Parameter
 +=============================+========+==========================================================================================================+
 | dbIndex                     | int    | Database credential index, given via `config-qfq-php`_ to let the current `Form` operate on the database.|
 +-----------------------------+--------+----------------------------------------------------------------------------------------------------------+
-| bsColumns                   | int    | Wrap the whole form in '<div class="col-md-??">                                                          |
+| bsColumns                   | string | Wrap the whole form in '<div class="col-md-.. col-lg-..">. See  `bs-custom-field-width`_.                |
 +-----------------------------+--------+----------------------------------------------------------------------------------------------------------+
 | maxVisiblePill              | int    | Show pills upto <maxVisiblePill> as button, all further in a drop-down menu. Eg.: maxVisiblePill=3.      |
 +-----------------------------+--------+----------------------------------------------------------------------------------------------------------+
@@ -2698,12 +2698,12 @@ Fields:
 |Size                 | string                      |Visible length of input element. Might be omitted, depending on the chosen form layout.              |
 |                     |                             |Format: <width>,<height> (in characters)  _`field-size`                                              |
 +---------------------+-----------------------------+-----------------------------------------------------------------------------------------------------+
-|BS Label Columns     | string                      | Number of bootstrap grid columns for label. By default empty, value inherits from the form.         |
-|                     |                             | _`field-bsLabelColumns`                                                                             |
-+---------------------+-----------------------------+-----------------------------------------------------------------------------------------------------+
-|BS Input Columns     | string                      | Number of bootstrap grid columns for input. By default empty, value inherits from the form.         |
-+---------------------+-----------------------------+-----------------------------------------------------------------------------------------------------+
-|BS Note Columns      | string                      | Number of bootstrap grid columns for note. By default empty, value inherits from the form.          |
+|BS Label Columns     | string                      | Number of bootstrap grid columns. By default empty, value inherits from the form.                   |
+|                     |                             | _`field-bsLabelColumns`. See `bs-custom-field-width`_                                               |
++---------------------+-----------------------------+                                                                                                     |
+|BS Input Columns     | string                      |                                                                                                     |
++---------------------+-----------------------------+                                                                                                     |
+|BS Note Columns      | string                      |                                                                                                     |
 +---------------------+-----------------------------+-----------------------------------------------------------------------------------------------------+
 |Label / Input / Note | enum(...)                   | Switch on/off opening|closing of bootstrap form classes _`field-rowLabelInputNote`                  |
 +---------------------+-----------------------------+-----------------------------------------------------------------------------------------------------+
@@ -4154,6 +4154,8 @@ The used default column (=bootstrap grid) width is *3,6,3* (col-md , col-lg) for
 
 A column will be switched off (no wrapping via `<div class='col-md-?>`) by setting a `0` on the respective column.
 
+.. _bs-custom-field-width:
+
 Custom field width
 ^^^^^^^^^^^^^^^^^^
 
diff --git a/extension/Documentation/Release.rst b/extension/Documentation/Release.rst
index 955d066935c24f726128f69e5953bc476a7067d8..6f36c390e8cf0f4756e6009590d3b01c11b3c823 100644
--- a/extension/Documentation/Release.rst
+++ b/extension/Documentation/Release.rst
@@ -30,6 +30,9 @@ Date: <date>
 Notes
 ^^^^^
 
+* Existing installations: update QFQ extension config form-layout.formBsColumns/formBsLabelColumns/formBsInputColumns,formBsNoteColumns.
+  old: 12, new: 'col-md-12 col-lg10' resp. smaller values for individual columnns.
+
 Features
 ^^^^^^^^