Found an easy way to join 2 different cliff levels

Connecting 2 (+1) Level cliffs:

Get them as close together as you can (the 1 square distance apart) and select the cliff you want to use as the "master" cliff, the one that will "Stretch" over and connect to the other one, and select it to (-1 Cliff), then click it next to the same type of Cliff (IE, if the "master" cliff is grass, click next to the grass cliff) and then click over once more to the "slave" cliff. (The one being connected to) and then you can use the level tool to attach them to the same level.

Connecting 2 (+2) Level Cliffs:

Again, get them as close together as you can, and select the "master" cliff once again. And use a (+1 cliff) tool on the "slave" cliff, meaning the one that is being stretched to, and click it once, then click over to the master cliff again. then you can use the level too to connect them again.

For the + and - cliffs, just use the opposite heigh tool to connect them.

EDIT: If anyone finds a way to connect a + and a - cliff together, please post here.

Nicely done fyre.. I've been wondering how to do this in some of my maps... Jolly good show mate.

I still can't find a way to connect a lower one and a higher one, I'll keep looking, if anyone has found a way, please share.