Not sure how to work the poll.
This one's a near and dear loss for me. It used to be a yellow button pop up function. You would arrow down to "jump to bookmark" hit select and see the list of bookmarks of the recording you were in (which were time-stamped) and then double-dash the unwanted ones. You could also navigate directly to any bookmark position in the recording by highlighting the bookmark and selecting. Extremely handy for jumping from one end of the recording instantly to the other and back again (especially long recordings), without having to do the clumsy tickmark navigating that we're now left with. The list would stay on the screen until you were done with it, then exit by yellow or exit button.
There's no sign that this feature will ever be brought back, so put your bookmarks in carefully, because you will be stuck with them.