Not Feasible
Applies to:Dream Maker
Status: Not Feasible

Implementing this feature is not possible now or in the foreseeable future
I'd like to map /atom/movable objects aside from /obj and /mob through the map editor.

I usually make these objects to distinguish them from /obj and /mob.
parent_type = /atom/movable

// etc.

The problem is that BYOND doesn't allow me to map them. Why not?
I don't really think it's necessary. If you want movable objects to be mapped create instances from /obj or /mob explicitly.
Realistically speaking, /atom/movable doesn't really work as a parent type of anything but /obj and /mob. You have to pick one or the other. All you've really done here is create an unusual datum.

Since this is furniture, /obj is appropriate as a type. If you're doing this because /obj has verbs defined for things like going into inventory, you should make such objs a subtype like /obj/item.
Lummox JR resolved issue (Not Feasible)
Then I can't exclude it in verbs with as obj parameters. :\
I thought such datum were fine since I can create and use instances during run-time without problem.