Concatenation Builder - Change Default Base Folder / Drag Folder Input

I just found out that FastFlix has the ability to act as a front end of ffmpeg to convert an image sequence to a video, and am happy with the functionality. However, it seems that the Concatenation Builder feature will always default to the user home directory (e.g. C:\Users\NAME) and as far as I can tell there's no way to change this (correct me if I'm wrong, I didn't see it in either the setting window or the yaml file). Simply dragging a folder from Windows Explorer to the Concatenation Builder window also does not work, so would have to go through the tedious process of pressing the Open Folder button and then navigating to whatever directory contains the image files every single time.

Would it be possible to add either/both of these functionality to make the UX much nicer for this functionality?