Adding interfaces to already running instance of ntopng

Hi,

I apologize in advance, if this has been discussed somewhere, but I was
unable to find it.

Anyway, I want to ask if it is possible to add interfaces to running
ntopng instance. I have a system, where short-lived virtual interfaces
appear and I would like ntopng to monitor them.

I know that I can restart the ntopng service, but then all the
statistics (like the protocol distribution, host stats, etc.) disappear,
which sadly wipes out the information I would like to keep for the
already unused interfaces.

Any idea?

Thank you.
Martin