Ability to replace tiles/ladders with Weight Plates without having to deconstruct them (and other tile replacement requests)

[fulldiver]

Currently the game seems to split buildings that can be walked on or climbed (henceforth "structural buildings") into the following categories based on how they interact with each other via a Build command:

1. Ladders, Fire Poles and Plastic Ladders
   • Can replace each other
   • Can be replaced by structural buildings from higher categories
2. Tiles, Airflow Tiles, Mesh Tiles, Insulated Tiles, Plastic Tiles, Metal Tiles, Window Tiles, Storage Tiles, Bunker Tiles, and Carpeted Tiles
   • Can replace each other
   • Can be replaced by structural buildings from higher categories
3. Transit Tube Crossings, Heavy-Watt Joint Plates, Conductive Heavy-Watt Joint Plates, Farm Tiles, and Hydroponic Farms
   • Cannot replace each other

My main suggestion is for Weight Plates to be included into Category 3. They currently seem to be in a completely separate category, and cannot replace or be replaced by any other structural building.

I also think it'd be nice if certain buildings in Category 3 could replace each other, like each of the Joint Plates, or each of the Farms.

It'd be also incredibly convenient if Category 3 buildings could be replaced by Category 2 buildings, even if they stay unable to replace each other. Having to deconstruct Farm Tiles or Joint Plates before replacing them with regular tiles can be a bit of a hassle sometimes.