ZBrushCentral

Appending more than 3 objects to the insert mesh curve brush

ZBrush Usage Questions
#1

Hi.

http://www.youtube.com/watch?v=kfs6DM8xxbE

Using the above link as a reference, is there a way to have more than 3 (or multiple) appended or imported objs applied to an insert tri curve brush?

Also, how can an insert mesh curve brush be constrained to an alpha, paint or polygroup path in zBrush?

Thx