These are tabs on the Bans page (Moderation, on All servers): Templates and Pre-bans. They need Operator or Network, and a ban only reaches servers whose agent can take bans and that have remote actions turned on.
Templates
An owner or admin saves a template: a name, a reason, a length, and all servers or chosen ones. A moderator then bans with one click, from the Bans page or a player's page (Ban with a saved template). Reasons are stored encrypted.
Pre-bans
Ban a player ID before that player has ever joined: Steam, Minecraft, Bedrock, Hytale, Cfx, EOS, Vintage Story or Roblox. ServerStats checks the format, pushes the ban to the servers that use that kind of ID, and applies it again the first time the player appears. If the player is already known, ban them from their player page instead. Revoking a pre-ban sends an unban.