Workshop Mallet

I would like to suggest the addition of a Workshop Mallet to assist players with building, upgrading and decorating their builds.

I was thinking the Mallet could have 3 functions:

Left Click:
Locks the selected structure: making it immune to player damage, preventing it from being demolished and in case of planters and pots also makes the plant inside it be un-harvestable.

Right Click:
Opens up an Upgrade menu that allows the player to upgrade the targeted structure piece to a different tileset without the need to demolish the structure.
Upgrading costs the same as building the piece but you get no refund for the piece that is replaced.

R key:
Instantly demolishes the targeted structure without the need to hold a button or a confirmation prompt.
Except for storage containers, they should have a warning prompt to prevent accidents.

This one tool can incorporate 3 of the most requested features for the current building system without the need to add additional hotkeys to the current system, thus keeping it simple for players who might not want to engage in advanced building and decoration.