Amend directly into another revision?

[Malcolm Matalka]

Sometimes "hg absorb" doesn't get all of my changes so I need to do a
little amending on my own.  If I want to put a change into a commit a
few revisions back an need to hg up -r .. an then hg amend and then hg
evolve.

Is there any way to do like hg amend -r 1234 and have at least the hg up
and taken care of for me?

Thanks,
/Malcolm