How do I undo a checkin in ClearCase remote client

I am using ClearCase remote client Versio开发者_如何学运维n 7.1.1, and I am wondering if it's possible to delete a version that was checked in by mistake. I know that in ClearCase, this is possible by choosing delete in the right click menu (Versions tree) Anyone has the answer ?

Thanks

Argh! rmver (see man page)?
I would strongly advice against such an operation which cannot be undone
(as I mention and detail in here, here or there).

And rmver is not possible in a CCRC client (even in the latest 7.1.2).

What I usually do is a graphical merge from the n-1 version to the n version in order to produce a n+1 version with the right content.