I just installed Plex in docker but there is no way to add media as there is no such button available. I have searched through the forum and some people also came accros this but can’t find any solution.
So… how far do you get with regards to completing the setup of your Plex Media Server? Did you already setup a library and are now simply trying to add more media or is this about the initial setup. From the sound of it you might have missed claiming that new server (e.g. by including a token from your Plex account to the initial configuration file)…