Couple handy tips I discovered
Sorry if these have been mentioned already. I didn't see them anywhere.
When you have imaged zoomed you can press the space bar (on PC) to start the "play" sequence. May need to click on image if "play" lost focus.
Also, discovered I can right click the image & "Copy image location" then paste link in new tab so I can use my Firefox zoom add-on which allows me to zoom in even further like 600 or 800%, way more than Firefox itself does.
Now if I could only figure out how to step through each image while zoomed I'd be all set. 😃