In the entrance editor they are marked unknown. They are the ones at the bottom of the drop menu.

Here are the values.

Unknown 1 = Mini Mario connected pipe facing up.
Unknown 2 = Mini Mario connected pipe facing down.
Unknown 3 = Mini Mario connected pipe facing left.
Unknown 4 = Mini Mario connected pipe facing right.

Great!

But those are actually used, in 7-A for example... How come these were still unknown!?

This really makes me LOL. I think, nobody cared 'bout them and was lazy to mention.
Thanks luckwii for posting.

I found something else interesting. In a level I am building I have a 2 tile wide mini connected pipe. That makes you have to put the paths nodes right on top of each other. I used two left facing entrances instead of a left and a matching right. This made it work.

Also, the destination area setting changes for connected pipes. I then becomes pointers to which node you are using in the path. So that should probably be changed in the editor or noted. Look at connected pipes...They always have one set to zero, and one set to one. This may not be node...but start stop actually come to think of it. Or beginning and end.

Yeah, but always I am using that function, the Connected Pipe does not work right anymore.

Hmm, are you sure? Did it work in BOTH ways??
The exit direction is determined by the path node, not by the destination entrance, but it's pretty weird it worked too from the other side.



Yea, destination area is 0=Follow path from beginning, 1= Follow path from end. At least for normal connected pipes it is. Pretty sure it's the same for mini pipes...

Yes it worked both ways flawlessly.

Weird. Gonna try it out myself sometimes later.
Hope it will work.