Hello. I was setting up a site, and was trying out some blocks. What I didn't realize is that there are two delete options, first is delete from canvas, and then there is a delete block.....

…. I didn't realize the delete block would delete the actual block from selection...

1. Is there a way to disable the delete block when creating/modifying a site?
2. How do I bring them back.... I might have deleted a bunch and I'm not sure which ones.... I can't do a reinstall of the full program as I already made some changes on layout.