Can New Outlook Sent/Deleted Items for shared email mimic the classic registry outlook entries

The New Outlook does not put sent/deleted emails in the shared email, unless opening the share email in a new tab.  Otherwise it puts these in the person's sent/deleted folder. 

In the classic outlook, this was controlled with registry entries.  The directions I give to my user community work but are annoying because folks open a new shared-email tab everytime they launch the browser or want to use the desktop version.  My user-community directions are:

1. Outlook in the web Browser:
   1. Option1, Open in a new Tab > Click on your Outlook profile (photo/initials top right, not the browser profile) > Click on Open another mailbox > type in Shared email ID (optional, after starting to type, select Search Directory) > click on open > the mailbox opens in a new tab.
   2. Option2, Add to same browser tab as your Inbox > Hover cursor over Folder (immediately above your Inbox) > Click on ... (right of Folder) >  Add shared folder or mailbox > start typing email > select from list
   3. Option1.1 and Option2 (cellphone) are the only options where sent/deleted emails go to the shared email.  Otherwise the emails need to be moved after the send/delete has completed.
2. Outlook on cellphone: > Tap top left icon beside inbox > Tap gear icon (settings) > Tap Add Mail Account > Tap Add Shared Mailbox
3. New Outlook on the desktop (icon on task bar): Shows up automatically.  > On left side, click on drop-down arrow beside Shared with me (below Search Folders) > Click on appropriate drop-down to see folders