Update on achieving higher resolutions: You don't necessarily have to manually edit the .lcl file. If you have a video card that came with software that allows you add custom resolutions, any resolutions that are your card's list will automatically be on the config tool's list of available resolutions. I had used my Nvidia control panel to add many weird resolutions for other modded games, like Diablo II and Planescape:Torment, and those resolutions showed up on Divinity's config tool list of resolutions without me ever having to touch the .lcl file.