Really? This is the useless response I got with my ticket: "If you are missing any data try using the data restore feature in the bottom left of the control panel."
You have to manually change it in the ini file through the FTP (you'll need something like FileZilla to access it). Some settings are not there by default, so check this page out for full ini file info (I just copied over the pre-existing ones so all options were available and edited it manually):
https://survivalservers.com/wiki/index.php?title=How_to_Create_a_Conan_Exiles_Dedicated_Server_Guide
And this page covers what all the settings do:
http://cdn.akamai.steamstatic.com/steam/apps/440900/manuals/ConanExiles_TechManual.pdf?t=1485874103