[Bf-docboard-svn] bf-manual: [8314] trunk/blender_docs/manual/video_editing/sequencer/editing.rst: Sequencer: add hint for the intended use of extend

[Campbell Barton]

Revision: 8314
          https://developer.blender.org/rBM8314
Author:   campbellbarton
Date:     2021-08-13 09:55:34 +0200 (Fri, 13 Aug 2021)
Log Message:
-----------
Sequencer: add hint for the intended use of extend

Modified Paths:
--------------
    trunk/blender_docs/manual/video_editing/sequencer/editing.rst

Modified: trunk/blender_docs/manual/video_editing/sequencer/editing.rst
===================================================================
--- trunk/blender_docs/manual/video_editing/sequencer/editing.rst	2021-08-13 06:07:26 UTC (rev 8313)
+++ trunk/blender_docs/manual/video_editing/sequencer/editing.rst	2021-08-13 07:55:34 UTC (rev 8314)
@@ -83,7 +83,23 @@
 All selected strip handles to the "mouse side" of the current frame indicator will transform together,
 so you can change the duration of the current frame.
 
+.. hint::
 
+   Extend is a convenient way to adjust the time of rough edits such as an "animatics" (sequenced story boards)
+   where it's possible to select everything and increase or decrease the length of strips around the current frame.
+
+   This can be especially useful when adding in audio or other elements that could cause the timing to need adjustment.
+
+   When performing this operation you may want to enable :menuselection:`Markers --> Sync Markers`
+   so markers are updated too.
+
+   This is just a convenience operation, the same functionality can be achieved by manually selecting strips
+   on one sidebar of the current frame, as well as handles of strips that are overlapping.
+   Then the same again for markers.
+
+   This avoids the manual process, so re-timing can be accessed quickly.
+
+
 .. _bpy.ops.sequencer.slip:
 
 Slip Strip Contents