I like to design blueprints with some entities having landfill beneath them for easier BP pasting on water. The trouble with that is if I place some landfill in the sandbox, I can't remove it again, and the same applies to water tiles. I can put landfill on water or replace landfill with water, but as far as I can tell there isn't a way to clear a tile of them both.

Would it be possible to have both of them working similarly to the ore placement tools, where we can place it with with select and remove with alt-select? If not, then maybe having a separate "tile cleaner" tool to remove landfill and water from tiles?

There's a button to "reset" the Sandbox which will also totally reset all of the tiles to lab tiles. I'll look into a more specific tool for doing only that, though.

Yeah, for now I'm using the reset when needed, but it would be nice to have a way to clear specific tiles. If I'm making a blueprint to use as little landfill as possible and I make a mistake, there isn't a good way to fix it other than starting over from a clear sandbox.

I have a fix for this, but it will only be included in the 2.0 update.

Amazing, thanks! Can't wait to test it. :)