Tunnels, Possible?

[Emera Nova]

So I'm wanting to make it so I have a "tunnel" that goes thru one of the raised up parts of the flooring. Is that possible and if so how?

Example being: Floor set 1, height set 3, and in the same position having a hallway or tunnel that would be floor set 0, height set 3.

[GoldenShadowGS]

Yes it is possible. You have to build the upper level out of entities map parts. Watch Skuggasveinn's tutorial part 2

[Jackard]

Example being: Floor set 1, height set 3, and in the same position having a hallway or tunnel that would be floor set 0, height set 3.

Not the way you describe it. You need

floor 0 + ceiling 3
then
height 1 or 2 bridge
or
height 0 fake ceiling + height 1 fake wall
height 2 invisible platform + fake floor
etc

each tile only has one base floor and ceiling, use objects for rest