Analysis Workspace Collaboration (Multiple editors)

[#1]

There is no way for multiple users to edit and save the same workbook unless you are admin.  I noticed that a similar post by DavidA on ‎04-12-2016 03:14 AM.  I remember collaboration being promoted when Workspace was launched.  Was this feature removed? 

Can we add user rights to edit/save workspaces owned by other individuals?

[#2]

Hmm, this thread is 3 years old now. Is there any progress to report?

[#3]

I would really like to see this capabilty--it would be a huge help in my organization

[#4]

Any user can now edit a Workspace project shared to them if they are given the Can edit project role: https://youtu.be/ZVHU_SOkFzg