Software multiple users in a single .dwg

[Anonymous]

I would like to know, if you know any company that provides some software that allows multiple users to work at the same time in a single .dwg and make simultaneous edits.

NOTE: XREF is not an option !!

[O_Eckmann]

Hi,

AutoCAD MAP 3D (Civil 3D) can do the job. 

One or more Map 3D can request objects form one or more DWG. Each AutoCAD MAP get a copy of objects. When a modification is done on an object, a lock is added to original object, and no body else can edit this object.

User, which have locked object(s), can synchronise modifications to original object and release the lock.

Other users rerun the request to obtain last version of object(s).

UI to manage these features is not very friendly but it works.

Olivier

[Anonymous]

@O_Eckmann 
Do you have a video explaining how this works ?? I looked in the documentation but I can't get it to work.