[NSFW] I want custom channels for each post

I bought the premium version because I thought that like whatsapp, I could customize with different contacts.
When I installed the premium packages I realized that in the channels I can only put one number and that appears in all the entries in general.
On my website I have several people who publish services in each entry and I would like each entry to have their personalized channels.

The page I need help with: [log in to see the link]