How do I place a PiP in several different places in Video Track 2 ?

Hi

I put a PiP (Picture in Picture) in video track 2 on the " Left side " then a short time later wanted to put another opposite on the " Right side " but instead it went to the "Left side" like the previous PiP which I did not want

I can put it in a different Track but as there are quite a few I realise there must be a way but somehow I can't find it in the manual or even on a search here

Does anyone know how to place several PiP in different spots on the same Video Track ?

Thanks in advance from Dave G