VEVOR Manicure Table, Glass Top Nail Desk, Makeup Dressing Nail Station with Storage Cabinets, Acetone-Resistant Nail Tech Table for Spa Beauty Salon Workstation with Wrist Rest, 8 Metal Legs, Black

Is the Arm rest detachable? Or does it come already on? And will the assembly need a drill?

Is the Arm rest detachable? Or does it come already on. And is a Drill needed as well?

Is it possible to place the top cabinet on either side, or is it only on the one side? We want several of this table but wpuld need to be able to place the top cabinet on various sides for things to look streamlined