App-wsgetmail usage with shared O365 mailboxes

Hi, there is a thread in the RT Users forum about using the new app-wsgetmail tool to fetch email from O365.
For what I can see, this new tool does not provide a way to select a shared mailbox from where to fetch mail.
This functionality is critical for us, so I would like to ask if it is possible to implement it.

Thank you in advance
Cris