How do I download an image from a specific sprite frame?

hi guys,

i have a sprite that stores screenshots in different frames...

..but currently the download button ONLY lets me download the last screenshot you took.

is there a way to let you download whichever screenshot you are currently looking at in the viewer?

here's my working file:

drive.google.com/file/d/1I0XAa7eaLpOckG7IG6J4p0zotUt9-3Ai/view