export of varoius chset

[Martín Marqués]

I want to pass part of a branch to another branch (the end of the
branch) in the same repo.

I was looking at export and import to do it, but I can't find out how
to export a group of changesets without having to explicitlly add them
with -r.

For example, I want the output of hg di -r 1849 -r 2020 to get patched
at the tip of the repo.

Can I just use the output of di, and how do I import it? Else, I'll
just use patch.

-- 
Martín Marqués
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DBA, Programador, Administrador