How to clear the "Recent Folders" under "Save as"?

Hi, I’d like to clear the list of folders that is shown in PDF Architect 5 when you save a file to your computer. Some recently used storage locations are shown but if they do no longer exist when (re)moved or renamed they will still show up there. Also I think you might want to be able to clear for privacy reasons? Anyway my usecase is that I’m more or less using a few folders as ‘favorites’, but once you have picked a few other folders this list gets clogged with useless references. Any tips or advise? The clear recent option only clears the recently openened files, not the latest storage folders.