11-08-2020, 09:34 AM
I’m wondering the same thing. I hope it’s ok that I add a specific question: In the if-parameter, how do I refer back to the piece whose condition for inclusion I am specifying? Do I use «(site)», as in the region functions? As in «if:(is Even (site))». Or does one use «(to)» and «(from)», which sometimes seems to be the case. And if it is the latter, won’t there be clashes between different things «(to)» and «(from)» might refer to, like when we use (size Group) inside a move that has a (to) parameter?