change the trunk of CVS

[Juanjo M]

Hello to all.
I would want to ask a question.
I am developer in a project. In the trunk of CVS, I have a tag denominated rel-1-5-0-1. Later, the trunk has continued evolving. However, I would like to revert the trunk to that tag, and the changes from that tag until the present time, to transform them into a branch that leaves of the trunk, from that tag rel-1-5-0-1.
Can I make this?

 

Greetings, and thank you ahead of time.

 

Juanjo.