Bulk Unpairing

Is there away to bulk un-pair all of my Z wave devices from my veralite U15 I don’t want to have to go around to each device

You have to go round them all to re pair them again so unpair just before you re pair.

I’m removing all of my zwave devices what if I reset the veralite to factory

No need to unpair in that case, Setting > Z-wave setting > Advanced tab to reset

The devices will still think they are paired to a controller. They will need to be reset or unpaired before then can next be associated again.