Update fields before editing an entry, including autofill on update of date(time) fields. refs: #1

1 files changed, 14 insertions, 3 deletions

diff --git a/docs/source/user/settings.rst b/docs/source/user/settings.rst
index 2ef9d02..fead752 100644
--- a/docs/source/user/settings.rst
+++ b/docs/source/user/settings.rst
@@ -73,7 +73,18 @@ Some field types may add other custom properties.
 ``auto``:
    automatic manipulation of the field contents.
 
-   At the moment only the value ``creation`` is supported, to autofill
-   the field at creation time with the current UTC time (``datetime``)
-   or local zone day (``date``).
+   The following values are supported.
+
+   ``creation``
+      autofill the field at creation time with the current UTC time
+      (``datetime``) or local zone day (``date``).
+   ``update``
+      autofill the field when it is updated with the current UTC time
+      (``datetime``) or local zone day (``date``).
+
+      The reference client will run this update before editing an entry,
+      allowing further changes from the user; a command line user can
+      then decide to abort this change through the usual git commands.
+
+      Other clients may decide to use a different workflow.