about hg merge

[Ling, Xiaofeng]

Currently, mercurial use hg co -m to do merge.
I often meet such a requirement that when I have a branch with several changeset,
and then I hope to merge to the latest revision, but I hope to still keep the separate 
changesets of my branch.
for example, after pull, I have a tree with two head
1-2-3-4
 \5-6-7
I hope to get a new tree
1-2-3-4-8-9-10
 \5-6-7
here 8,9,10 is 5,6,7's new changeset based on the new revision.
currently, I can do with hg export and hg import one by one for these changeset.
But can I get such a command like
hg merge  5-7
to do it more conveniently?
further, It will be more helpful if I can do like merge 5 and 6 to changeset 8, 7 to 9
1-2-3-4-8-9
 \5-6-7
by command hg merge
hg merge -m 5,6 7



-------------------
Ling Xiaofeng(Daniel)
Open Source Technology Center
Intel China Software Development Center
iNet: 8-752-1243
8621-52574545-1243(O)
xfling at users.sourceforge.net