I want to have multiple VIP levels with different home limits and countdown/cooldown but I only see one VIP option.

Is it possible to have 2 or even 3 tiers of VIP? If so how?

how to add a new privilege? In the plugin there is a VIP, I want to add another ELITE

You can add dif levels by editing the config and adding the new groups where you want them
like this.
"Home": {
"HomesLimit": 4,
"VIPHomesLimits": {
"nteleportation.veteran": 5,
"nteleportation.vip": 7,
"nteleportation.vip2": 10
 you just repeat it in cooldowns etc.