diff -r de16800904f9 -r 68dc6cecca32 mercurial/commands.py
--- a/mercurial/commands.py	Mon Dec 02 02:41:57 2024 +0100
+++ b/mercurial/commands.py	Mon Dec 02 02:45:41 2024 +0100
@@ -2971,6 +2971,12 @@
             _(b'base revision when doing the graft merge (ADVANCED)'),
             _(b'REV'),
         ),
+        (
+            b'',
+            b'to',
+            b'',
+            _(b'graft to this destination, in memory (EXPERIMENTAL)'),
+        ),
         (b'c', b'continue', False, _(b'resume interrupted graft')),
         (b'', b'stop', False, _(b'stop interrupted graft')),
         (b'', b'abort', False, _(b'abort interrupted graft')),
@@ -3061,6 +3067,16 @@
 
     .. container:: verbose
 
+        The experimental --to option allow to graft a revision in memory,
+        independently from the working copy. Merge conflict are not currenly
+        supported and the operation will be aborted if the configured tool
+        cannot handle the conflict that might be encountered.
+
+        As the operation is performence in memory, the on disk file will not be
+        modified and some hooks might not be run.
+
+    .. container:: verbose
+
       Examples:
 
       - copy a single change to the stable branch and edit its description::