I'm surprised they even show up there. You're supposed to play standalone levels from the editor, and you can have as many as you like (it is recommended to put them into a common subfolder).
This holds for both 1.3 and X2 and even 1.4.
Still using the legacy editor? Get SMBX2 and PGE, it will improve your experience significantly. Here's why.
And remember, Yoshi's are tools to be used and discarded.
ShadowStarX (06/14/18) wrote:
South Korea is easy deal