Lemmy Support

I've recently spun up my own lemmy instance just so i can get a cool username with the domain, but it seems that i have to manually go and search every community before i can see posts from them in the all tab. Is there a way i can just see all communities from all the instances i am federated with? Is there also a way to just browse what communities exist on those instances without leaving my oen. Right now i go to the websites for those instances to browse, then go back to my own and search for the post again if i want to comment or subscribe.