Help! Prim Counters for parcels?

Hello,

I have a sim that I've parceled out for skyboxes and tenant land. I placed my rental boxes (hippo) in an office.

Can someone please tell me the best way for the tenant to keep track of their prims? I have an excellent one for myself that counts all the prims on the sim, but I'm looking for something that will send a warning to the tenant when they've gone over the prims I've given them for their individual parcels.

Would someone put another hippo rental box on the parcel specifically to count prims?

And, I'm noticing that theres actually no end to the amount of prims a tenant can use on the parcel? Is that right?

Bare with me I'm still learning.. thanks!!

They can't just look at the land pane?

hmmm.. yes.. but I was hoping to find something that would send them a warning as well?

And if they looked in about world wouldn't that be all Group prims since I rezzed the skybox and it's deeded to the group?

Thanks!