The idea that everyone had, but I put it in image.

Create the rooms and their contents independently.

And thus, to be able to add machines in the rooms, after putting the rooms.
In exchange, it is impossible to control the machines through the walls.

To be sure, I repeat. (because I do not write English)

1. Create the room.
2. We put it.
3. Create the storage.
4. We put it, outside or inside (the same !).

The classic case with the storage :

Easy !

More ? :

But obviously not for everything. :

With an indication at the time of crafting. :

Thank you for your attention :)

umm, not necessary. u can easily operate these the way it's now.

Yes but it is not very logical to activate the machines through a wall.

а мне нравится 

как липки сказал