Fusion Solar user roles definition not possible/available

hello everyone, since the last update i no longer have the possibility to assign a specific role to users. before this still worked and i could add user groups and define the rights for them. unfortunately this is no longer possible. how can i add or customize user roles now? the three default user rights are unfortunately very poor and not sufficient.

furthermore, it is not possible for me to assign multiple pv systems to a user if the user was created in the main company. this is possible, but then i only have the 3 predefined user roles and not the one i created back then. the user role i created back then is only available if the user is created on the respective pv system. however, this is of no use to me if a user is supposed to have multiple systems. this means that he cannot create reports as guest or owner, for example.

it seems to me that some windows are gone, such as the possibility to define user roles. i.e. which user can use which functions. i'm logged in with the main account, it has the description "installer" in the menue.