PowerBI Pro shared storage explanation

Hello KBO,

Fist of all, thank you for the quick repsonse. Secondly, I want to ask this again so it could be clear for me. 

So in the official docs (https://docs.microsoft.com/en-gb/power-bi/admin/service-admin-manage-your-data-storage-in-power-bi) it is stated that:

"Workspace storage limits, whether for My Workspace or an app workspace, depend on whether the workspace is in shared or Premium capacity."

 So there are two options, shared and premium capacity. As I understand shared capacity is about Pro licences. As stated in the official docs:

"Shared capacity limits

For workspaces in shared capacity:

• There is a per-workspace storage limit of 10 GB.
• For app workspaces, the total usage can’t exceed the tenant storage limit of 10 GB multiplied by the number of Pro licenses in the tenant." 

I am specifically interested in purchasing PowerBI Pro licences and share their storagage eg in an app-workspace but I am not 100% sure if it is possible and how to do it. 

If the above statements hold, my questions are pretty much the same:

1) Can I create an app-workspace with shared storage of Pro users right?

2) Is there any limit to how many Pro licencses I can use in the app-workspace in order to take advantage of their storage?

3) Is their any detailed guide how to configure an app-workspace with shared storage?

4) Is any central management of the app-workspace?

Once more thank you in advance. I hope I made myself clear.