Display process for different users/groip


How can I change / set up the icingaweb 2 view for different user.
I am taking over a colleague a user set up, and from my account I see something completely different from someone else with the same link (he got “an old view” he said) , when i verfify from my (admin) account I see well the process/servers he wish to see…? I do not know how this was configured and why it is completely different between us ?

[EDIT] : in clear I see from icw2 the following group to change, but do not know where to change, iguess directly from the set up service,

hostgroup_name = -nametargetto adapt-

I don’t know if what i wrtie is clear,… i will dig it up deeper