/bset should work just like set.
/bset &bvar <data> ;-- global persistent bvar
/bset -u &bvar <data> ;-- global persistent bvar auto unsets at end of execution.
/bset -l &bvar <data> ;-- local bvar
Mysterious double post... weird...
EDIT: AUGH WHAT IS GOING ON?!? I edit it creates a new post? This is the last attempt at a post since I don't know what will happen when i click submit.