I have done that, it just seems very repetitive. When I can see it on the screen. There is a link to "Create Pocket Query" from the map view, but even it didn't work as I had hoped. I laid out a screen with the caches I wanted to download and clickd the create pocket query link. The screen showed 370ish caches, when I previewed the pocket query, it maxed out at 500. When I viewed it on a map, it was larger than the original area. I was just thinking that if I could click a button to create/add current caches to a bookmark list, then create query of the bookmark, it would do what i was expecting in the create pocket query button.
The page has the list of caches (displayed on right), I was just thinking dump them into a bookmark list would be an easy/useful tool.