Possible Improvement for Asset Selection Modal?

I'm loving Perch 3 but I find it quite frustrating now and again when scrolling through assets using the "Select an Asset" modal (especially when there are lots of assets) – and require to go back to the very top of the asset list to find the menu and click the "Use Selected" button. This will have obviously been considered during Perch's redesign so there's no doubt a good reason for it, but would it not be better to have either a toggle to overlay the menu / have the menu appear once starting to scroll up again / have a sticky menu?

It's just something that I keep thinking about and wonder if there's a better way?