still waking up, so a little slow on the uptake here. but from what i think i'm reading, you need to bulk edit items that are currently up and running on ebay? if so, yes there's an easy way to do it. (well, so-so on the easy cause of glitches on ebay's part)
just go to my ebay, then go to items for sale, then tick the boxes for all the ones you want to edit and click edit. it will walk you through it. Note: many people including myself experience problems when trying to edit large amounts of listings at a time. if you get database errors while trying to do it, lower the number of items youre trying to deal with.
hope this helps.