i am pretty sure need the YEP_RegionRestrictions.js(that the best one)
I wouldn't call it the best one - because using regions for passability disables 90% of the special features available to tilesets.
It is commonly used because it is the quickest and easiest way to get the
simplest passability into a map, but for the
best passability options you don't use a plugin at all, but an invisible tileset.
Basically you need to create two B-tilesheets for that. One tilesheet is 768x768 pixel completely transparent, the other has symbols detailing passability on it - regular passability, directional passaility, ladder-passability and so on.
During development you use the symbol sheet and set its options in database-tilesets to be exactly what you made the symbols out to be.
With this you can place any form of passability option on any tile on your parallax map, and see that passability during playtest.
After the game is complete, you just change the picture in the project for the transparent one (they need to have the same name to keep the database settings). That makes all the passability symbols invisible but keeps the tile settings for the player.