Updates to the Structure Blocks

The structure blocks NEED an update. I don't see them used often (or really ever). But I have ideas that might make players use it more.

1st. (I don't know how saving structures works) You could allow for universal saves. I know I've wanted to transfer a giant build from world to world, thought I could use structure blocks, and was severely disappointed. This is more quality-of-life, but would definitely be useful, especially to builders who have a test world.

2. I personally hate having to keep track of things like passwords and codes. So when I have to remember the name of a saved structure (and I have a lot of saved structures), I never really want to use the structure. Adding a little scroll down list when you click load and go to enter the name would be so nice. Even showing what the build would look like in the area you're placing it in would be a lifesaver.

3.Adding another option in the block menu, below save and load, something along the lines of replica or replicate. And what it does is display a transparent version of the build where you want to place it, showing the different blocks and everything. Then if you want to build the structure you can, while its still an exact copy.