Multiple Tracking Numbers - Comma Separated

When I receive tracking from suppliers, I add manually to AfterShip.  Usually there's more than 1 tracking number, for the same courier, so it would be great to able to add multiple tracking numbers at the same time as comma separated.

When clicking Save, it would then use all the information entered, for example; Customer name, order number etc etc.

Below example for tracking number 123456789 and 987654321