Enlarging previews on Epson Scan 2?

On my Mac I recently upgraded to BigSur, which means my old Epson Scan software was toast. I downloaded and installed Epson Scan 2 without any issues. However, I'm attempting to scan some B/W 135mm film using the wet mount method (thumbnail previews are not available), and while I'm getting a preview, the images are much too small for me to make any accurate corrections or crop them individually. See screenshot below of preview with two negs I'm trying to scan. I can not figure out a way to enlarge this preview (which was EASILY done in the prior version of Epson Scan). I've checked some YT videos, but the only wet mounting ones I'm able to find are MF and the preview is much larger.

Ok, so I figured it out. It's not very intuitive, but you have to make the selection, then hit the 'preview' icon once again (before, I believe there was a "+" sign to enlarge); it then rescans the area that was selected, and presents it as a larger image.