Generate single size only?

Hello,

Firstly, great plugin, very useful.

My site has thousands of images and I would like to add a new image size and generate that size only, without regenerating all the images sizes that already existing. Plus those images that already exist have also been further compresses by WP Smush Pro… so regenerating and recompressing takes many hours.

Is it possible to generate one image size only? (Not one image, one image size across ALL images).

I might be imagining this, but I really thought this plugin or the other popular thumbnail regeneration plugin has checkboxes for which sizes to do… but I don’t see that any longer.

Thanks!