Enforcing a set of providers

Is it possible to enforce a set of charging providers (e.g. just IONITY and EnBW)? If you have a contract there, it would be desireable to just focus on these and not propose any other providers. I don't see how you can achieve this with the current setting (in my case traveling Poland and I can't force just using IONITY). So far, I only see that I can recommend but not enforce e.g. IONITY