I don't know if I'm wording this correctly:
How do I configure Cakewalk so that it responds to a key or other midi event activated on my keyboard, in such a way that it causes a "loop" to become active?
In other words, we're playing a song in a live venue (or rehearsal), using Cakewalk to control our midi instruments, and at some point during the performance, we decide we'd like to repeat a section(s) of the song. How to achieve this in Cakewalk?