Can't See all plugin files

So I am trying to install a plugin called discordsrv its a plugin that can do a couple of things. however the files do not show all the files it should be showing like the most necessary .yml file to make the discord bot communicate with the server. anyways I tried to look up a way to add the file my self but there is no way. this is because of how you can not add custom plugins. Aternos should have a separate software download to add custom mods and plugins such as discordsrv. is there anything i can do about this ? just wondering thanks for youre time