Can you clarify the reason why Workflow is being used for volume management? When you create a new document and specify the "parent" rollover volume (logical), the Laserfiche Server automatically handles which physical volume the document will actually go into. You should then be able to continue adding pages to that document.

A generic example based around your scenario would be to create a new blank document in the Client and choose to use the rollover volume. Looking at the document properties, you'll see that the Laserfiche Server actually puts it into the latest physical volume in that rollover. You should then be able to open that document in the Client and scan pages into it using Laserfiche Scanning.

Can you confirm that the above example works in your environment?

To follow up on what the others have said - in general the lack of the Create Document right shouldn't impact people, because no one should be importing into the individual child volume directly. Everything should use the logical volume parent as their target volume and the Laserfiche Server will handle it all automatically. If anything is trying to import directly into a specific child physical volume, it's probably not doing so in the correct fashion. 

I think I see what is happening here.

Thanks!!