I don't care if I'm late.
I just made a little test-build using these, it's attached to this post for people who are confused and don't know how to make these work, you can study the events on the buttons if you fall into this category but it isn't much.
If you don't know what to do with the .bls file just drop it into your Bedroom folder contained in the Saves folder in your Blockland directory, the screen shot isn't required but you can put it in there as well.