Placeability toggle option

[EndEmpire]

Good day, I would like to recommend the ability to toggle whether or not a backpack can be placed with shift + right click. I use the restock upgrade for the backpack frequently, but I never (intentionally) use the ability to place the backpack. So I find it quite annoying when I accidentally place my backpack on the ground or wall.

I am aware this annoyance is probably pretty uncommon so I understand it might not be worth the effort, but if you would be willing to add a tab to toggle the ability to place the backpack or something similar, I would greatly appreciate it.

Thank you for your consideration and for your hard work on this mod.