Multiple connections for Upload/Download and Delete command

Is it possible to add multi-connection capability for upload/download and delete commands?
This is currently not possible:

Multiple connections are not used, when using Upload/Download and Delete command

https://winscp.net/eng/docs/ui_pref_background#background_transfers

I have added this request to the tracker:
Issue 2064 – Allow using multiple connections for "Upload/Download and Delete" transfers
You can vote for it there.