diff --git a/web_timeline/README.rst b/web_timeline/README.rst
index 5881f732..eaaf4eef 100755
--- a/web_timeline/README.rst
+++ b/web_timeline/README.rst
@@ -58,6 +58,8 @@ the possible attributes for the tag:
 +--------------------+-----------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
 | event_open_popup   | No        | When set to true, it allows to edit the events in a popup. If not (default value), the record is edited changing to form view.                                                                                                                                            |
 +--------------------+-----------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
+| stack              | No        | When set to false, items will not be stacked on top of each other such that they do overlap.                                                                                                                                                                              |
++--------------------+-----------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
 | colors             | No        | Allows to set certain specific colors if the expressed condition (JS syntax) is met.                                                                                                                                                                                      |
 +--------------------+-----------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
 | dependency_arrow   | No        | Set this attribute to a x2many field to draw arrows between the records referenced in the x2many field.                                                                                                                                                                   |
diff --git a/web_timeline/readme/CONFIGURE.rst b/web_timeline/readme/CONFIGURE.rst
index a05a24bc..0d1435fa 100644
--- a/web_timeline/readme/CONFIGURE.rst
+++ b/web_timeline/readme/CONFIGURE.rst
@@ -18,6 +18,8 @@ the possible attributes for the tag:
 +--------------------+-----------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
 | event_open_popup   | No        | When set to true, it allows to edit the events in a popup. If not (default value), the record is edited changing to form view.                                                                                                                                            |
 +--------------------+-----------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
+| stack              | No        | When set to false, items will not be stacked on top of each other such that they do overlap.                                                                                                                                                                              |
++--------------------+-----------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
 | colors             | No        | Allows to set certain specific colors if the expressed condition (JS syntax) is met.                                                                                                                                                                                      |
 +--------------------+-----------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
 | dependency_arrow   | No        | Set this attribute to a x2many field to draw arrows between the records referenced in the x2many field.                                                                                                                                                                   |