Maybe create a new project, call it “Favorite Sweep Profiles”, then open your projects in another instance of the software. Copy the profile from each project and paste them in to your new file to save for later.
Or...open each project, select and export each profile vector (as EPS, DXF - whatever you prefer) to a folder you create as the destination for your exports.
Either way, you can access your profiles for future projects from a single source/location.
-ShopBot Buddy PRSAlpha CNC