Ingesting PST data under Managed Folders

All - we have published "Managed Folders" for different retention period to users.

eg. Mailbox\Managed Folders\1 Year - working folder

eg. Mailbox\Managed Folders\2 Year - longterm folder

Now we would like to ingest user PSTs via multiple methods into the user archives under the above folders.

eg. If we were to ingest PST1 into 1 Year - working folder, we would like to see below

Mailbox\Managed Folders\1 Year - working folder\PST Folder1

Mailbox\Managed Folders\1 Year - working folder\PSTFolder2

etc..

Is it possible to ingest PSTs into an archive not only the root folder level of the mailbox but at subfolder levels? I've tested it and I could only create a folder at the root mailbox level only.

Any advise would be helpful.