Yes I used this plugin of AE and it sucks because nany features arent implented and dev has stopped. About frame export yes I did it but with AE it has troubles because to many layers after converting to outlne shapes to nany groups if u 250 images with 20 group laywrs = 5000 because that is AE lagg...

I wish we had an export function for SVG with SMIL so that we only have one file and no more sequence which I then have to convert to a SMIL in After Effects.