How to Add an Admin on a Stardew Valley Server
Make the First Player to Join an Admin
1. Login to the Kinetic Panel.
2. Stop the server.

3. Go to the File Manager on the Kinetic Panel.

4. Navgaite to StardewValley > Mods > StardewServer > Config.json
.
5. Locate "MakeAdminOnFirstConnection": false,
and change it to: "MakeAdminOnFirstConnection": true,
.
6. Save & Start your server


7. Join your server.
Add Additional Admins
1. In-game, type the command:
!admin Username
2. Press enter.
Remove Admins.
1. In-game, type the command:
!unadmin Username