Regarding the container add-on "moving barrels":
Suppose you have an add-on that is a container, like the Elven Dresser. Now, you can re-deed it and keep all its contents inside. The "deed" is a barrel that you cannot open. You can't put anything in or take anything out. The barrel is not blessed. But you can pick it up and move it around. It is treated as a container; its item count is the item count of everything inside it plus 1 per container and 1 for itself and its weight is the weight of everything inside it, plus 2 stones.
This means that you may not be able to hold the barrel in your backpack or even a pack horse, if its weight is too high.
You may then use the barrel as a deed, to place the container in a different location. If you can get it there, you can move it to another house. When you place the add-on from the barrel-deed, then all its contents will be unpacked with it.
In addition, it is now possible to use add-on deeds while they are anywhere in the target house. It is not necessary to put one of these barrels in your backpack in order to place the add-on back.
All that allows these benefits:
1> You can now customize your house while it has container add-ons in it. These will be turned into moving barrels and stored in the moving crate. Like other add-ons, the system will attempt to put it back where it was after customization. If it no longer fits, it remains in barrel form in the moving crate. You can use the deed directly from the moving crate to place the add-on along with its contents.
2> You can now easily move container add-ons while they contain items. Just make sure the container is locked down or secured, then chop it with an axe. Then, double-click the barrel and target a new location for the add-on. You can target any location in the same house; there are no longer any range or line-of-sight requirements.
