My suggestion for the Create mod is to allow Conveyor Belts to move chassis/blocks via use of slime balls/super glue. It would be a neat new way of moving blocks, and could be implemented into some pretty cool stuff.(i.e. Wonka-style multidirectional elevators) Posted a comment requesting this on the CurseForge page, and someone told me to post it here, and, well, here we are!

There's the gantries? Except they can't go diagonal.

There's a workaround for now: you can make a minecart contraption and put the minecart on the belt itself.

There's the gantries? Except they can't go diagonal.

Yes, sort of like gantries, except they can go vertical, and rotate the structure at the end of the belt.

You can attach a bearing onto a gantry to rotate it, also gantries can move up and down.