Many ARK mods read their configuration from a dedicated [ModSettings] section of GameUserSettings.ini rather than from the standard sections. The mod author documents their keys (often on the CurseForge page or in a README). AASM exposes this section through the Mod Manager so you don't have to hand-edit the .ini.
Prerequisites:
- A mod installed and Active.
- The mod's documented config keys (from the author's CurseForge page).
Step 1 - Open Mod Manager
Server tab → Mod Manager. Find the mod whose settings you want to edit in the Active list.
Step 2 - Open per-mod settings
Click the gear/settings icon on the mod's card. AASM opens the per-mod settings editor showing every key currently in the [ModSettings] section attributed to this mod, plus any keys you've added previously.
Step 3 - Add or change keys
Use the editor to add new keys or change existing values. Common patterns:
SomeFeatureEnabled=TrueMaxStacks=1000CustomChance=0.5
Mod authors set the key names - copy them verbatim from the mod's docs. AASM doesn't validate them against the mod's expected schema (it can't - the mod hasn't declared one).
Step 4 - Save
Click Save. AASM writes the [ModSettings] section back to GameUserSettings.ini using a case-insensitive section/key matcher (v0.8.2 fix, BUG-ModSettingsCaseInsensitive) so existing keys are updated in place instead of duplicating into a new section.
v0.8.2 / v0.8.3 concurrency: simultaneous mod-settings edits from desktop + Web UI on the same server are now serialised via per-server locks (BUG-ModWriteRace). Earlier builds could lose changes if you saved in two places at once.
Step 5 - Restart to apply
ARK reads GameUserSettings.ini at server startup. Restart the server (or wait for the next scheduled restart) for the mod to pick up new values.
Step 6 - Capture a snapshot if you're happy
Once a mod loadout works, take a Settings Snapshot. Snapshots capture the full [ModSettings] section via ModConfigService.setModSettings() on restore (selective restore was a v0.8.2 polish), so you can roll back per-mod tuning without losing it.
Editing Mod Settings ([ModSettings]) - done
Per-mod settings live in [ModSettings] and AASM edits them safely with case-insensitive matching and per-server locks. Snapshot them once you're happy with the loadout.