Deck expression counting on other maps

Module Design
1

The number of cards in a deck that match an expression is exposed at the map-level. I seem to recall some discussion of indirectly exposing deck counting to other maps. Did this ever happen in 3.4.x?

2

I guess it is real. I certainly can’t make it work across maps, though it works on the same map.

3

Does GetMapProperty() not work ? It does for (deck)_numPieces, for sure.

4

I didn’t try this. In the specific case, I could move the deck to another map (it was outside the visible part of the map anyway.

But it was still surprising, to me at least.