I’m working on a portfolio page.

I’d like to use overlays for the projects. The overlays should slide in from the right to 50% of the browser-width (on Desktop). I can achieve that by using regular overlays (Save each „project“ as a „page“ not a „project“). But I can’t do that with the Project Overlays Options and the Project Index provided by laytheme. Am I missing something or isn't it possible withe the Project Index?
Thanks