Link between 2 maps

Hello,

I'm a french student who work on shinken and i have a little problem with nagvis.

I have one big maps to represent all sites of my entreprise, and one map per site.

I can see on sites differents services on hover, but on the big map, all of my hosts are "no service" :


This is one of my hosts with his services :


But on the big map i have that :



There is no communication between theses two maps for services.

I think the problem is hover_template.

Do u have any idea to solve this problem ?

Regards,

Kryo

PS : Sorry for my english :/