Any way to turn on "Download All" button for all past galleries?

Question about a Smug Mug account that already has several hundred galleries. All the galleries for the past year or so have the "Download All" button enabled but prior to a year ago the files can only be downloaded individually. Is there a way to "bulk enable" the "Download All" button on all the past galleries or would we have to go into the settings for each and every gallery individually.

Thanks!