Mapping problems in VX

I'm fairly new to RMVX, and I've been having a problem trying to map certain things. The main problem I've had is the issue of conveying height in a map. To show you what I mean:



Take this simplified map. It's fairly clear that the ground at the top is two levels higher than that at the bottom of the stairs. However, if I wanted to be able to walk down the side of this:



Apologies for the drawings over the top but I couldn't think of a better way to explain what I mean. How can I make the ground above differentiate from that below? I've tried using the shadow tool - it looks slightly better, but there's still the issue of being able to walk between the top and bottom levels.

Try filling it in with the cliff tiles first?

Add shadows along the right side and events on the cliff that won't let you pass.

This is a script i found it is slightly complicated but the page in the link should explain, it allows you to walk on roof tiles but not walk off except when walking onto specified stair tiles so use this script and replace you top from with one of the roof tiles

Link:   http://www.rpgmakervx.net/index.php?showtopic=35549

I hope this helpsa= and if you use the standard tiles it should be plug and play

That is one of my favorite scripts to use. Makes VX a load better. I'm hoping somebody is going to make it compatible with VXA!