I would start by switching to cage time instead of tent time for a few weeks.
you should get a treat. dried mealworms, yogurt drop. at night when they come
out of pouch. I would feed them a treat, get them to climb on our hand/arm to get
the treat. then see if they will sit on your arm and eat the treat.
this could teach them that your arm is more for sitting while eating a taste
treat, rather then YOU being the treat.
gliders do love to groom, I had one that would find a spot on me and start
grooming until it would bleed. so I would just move them away as they groomed to
having a few treats available during tent time might help also.