Foiled, by my owned forgetfulness

I had this great idea - develop a multi level game based around the idea of a spy trying to find some information. I've built all the separate levels for it - some are platform based, some are puzzle based - and put them all into the level generator.

It was then that I saw the message that reminded me what I had forgotten... you cannot put a puzzle (the second image above into a levels activity). Thwarted through the lack of a memory. Drat!

 
I need to make some changes now to replace the unusable activity.