How to make a level in this pizza tower level editor!

if you confuse it becuz of my english skill.. timestamp 0:00 intro 0:08 how to install 0:17 enter level editor 0:32 control 0:41 show how to setting room 1:06 collision 1:38 enemies 2:09 toppins 2:31 warp 3:32 secret room 4:28 door 5:07 tiles