1 hour ago, schwanz9000 said:
Open the inventory and click on the lock icon.
You are now in Lock Toggle Mode.
Select any inventory slot to enable the lock.
Click on the lock or close the inventory window to save your options.
Trying this out rn and it is not quite working. I can enable the lock (it blinks), put things in the slot, and then click on the lock again but it does not lock it. Neither does saving options closing the inventory.
It might be user error, though, and I apologize if it is (and watch, as soon as I post this, it will fix itself or I will figure it out and look like boo boo the fool)