But the more I play with regions the more likely I'll actually use some "parallax mapping" on some stuff. I really wish you could have regions layered as there are times I want 2 or 3 regions controlled effects in the same spot........
you don't have to use regions for passability.
In fact the use of regions for that is only to simplyfy things, and a lot of the original capacity of the passabilities is lost that way.
The original way how people handled passability on parallax mapping was using two different tilesheets.
One tilesheet with passability symbols, and one completely transparent tilesheet.
During development, the tilesheet with the passability symbols is used, and the tileset options are set exactly like the symbols - including things like directional passability, ladder and so on.
Then the map is filled with these tiles depending on where needed.
And just before deployment, that symbol sheet is exchanged with the completely transparent sheet - the symbols will vanish then, but the invisible tiles keep the different passabilities set for them.
Attached below is one of such tilesheets made by someone on the forum, but unfortunately I don't remember who made it. It requires much more work than simple region block, but has more options and does't use up region IDs.
