How to change XP and capture rates on a Palworld server

These settings are in the server's PalWorldSettings.ini file. Stop the server, edit the value in the File Manager, save, then start it.

In the GamePanel

your serverFilesOpen

Stop the server in the GamePanel.
File Manager: open Pal/Saved/Config/LinuxServer/PalWorldSettings.ini.
File search: PalWorldSettings.ini in Pal/Saved/Config/LinuxServer
Find the setting you want (Ctrl+F) and change its value. Examples: ExpRate=2.000000 doubles experience, bAllowGlobalPalboxExport=True and bAllowGlobalPalboxImport=True turn on the global Pal box.
Save, then start the server.

Common errors

Everything sits on one long line, OptionSettings=(...): don't remove any comma or parenthesis, or the server restarts with default values.
The name, passwords and player count are rewritten on every start from Server Options: change them there, not in the file.
World imported from a solo or co-op game: if it contains a WorldOption.sav file, its settings take priority over PalWorldSettings.ini. Rename it (server stopped) so your settings apply.
Reinstalling the server puts a fresh file back: the old one is kept alongside it, renamed with the date.