Oh, sorry, I'll try to explain better. If I use rule 1 wall.tmx and rule wall2.tmx on the same layer, they will not connect right? So then I'll have to use some tiles from the tileset manually to connect them?
The layer thing: If I have a layer with water, the the coast, then the mountain/walls. Then it wouldn't matter if coast layer is not perfect if I put wall tiles on walls layer on top of coast layer since people won't being seeing the imperfection of coast layer? Asking this dumb question because of collision for walls layer