Postby silent_ » Thu Apr 03, 2014 7:00 pm
Exits are in a tab at the bottom of the level editor named "NPCs". You will find some in the SMB2, SMB3 and SMW section of them such as the orb, SMB3 star, and SMW Goal Tape. Pipes are in either the SMB1, SMB3 or SMW section of "Blocks".
Does this help?