Installation
Download BG3ModManager_Latest.zip
and extract it to a folder with sufficient permissions for your user account (don't put it in the Program FIles folder, or a protected user folder).
Important
Make sure you have the path to the "Game Data" folder set in the Settings -> Preferences window. Always restart the mod manager after changing this path.
This is required to load the campaign data (exporting your load order with no Campaign selected will cause issues).
After arranging your load order, click the "Export to Game" button to write your load order to modsettings.lsx.
Load order changes require a game restart.