Add new option to only select own provider of electricity

Hello abrp Team,

I love the app but without the fester I request it is not usable for me.

I am customer of EnBW and pay a monthly fee to reduce the charging cost to 39 cents at EnBW charging stations.

I can use the card on other providers as well but mostly pay almost double the price. The route planning over ABRP is not usable for me since I don't see any option to only select my provider. Every route I plan I get charging stations where I can pay at, but pay horrendous prices while it ignores the stations of EnBW.

Please add a feature to select charging providers or price limits in the route planning.

Thank you and keep up the great work!