[WP Smush Pro] Bulk editing of images in NextGEN Plus galleries

Hi, how best to proceed with the bulk editing of images that have been embedded in NextGEN Plus before installing Smush Pro?

When I open the NextGEN> gallery administration panel, I can edit the images only individually – one by one …

It's better to do the following: Dashboard Smush Pro> Directory Smush> select and NextGEN gallery folder> SMUSH?