You can add a custom config to QuickSet! First, navigate to your device in Engine and select or create a config that you wish to use. Please make sure that it is saved.
Certain quickset settings can be applied automatically. In case your usual, custom settings don't apply, please alt-tab into the Quickset controls and check which config is applied.
After doing so, please go directly to QuickSet and select the device, and then, from the dropdown menu, select the profile that you wish to use. In the upper part of QuickSet, you will see QuickSet profiles. On the right side, please click one of the Windows, selecting the app or game that you wish to use it with.
GLHF!