In the My Training section there should be a recent history to show you the series/videos that you have watched in the past X days (I would say 14 days but that could be flexible). So if you leave a series it is quick and easy to pick up where you left off.
Voting on Ideas
Vote for your favorite ideas by clicking on the up arrow.To undo an upvote, simply click the arrow again. This second click removes your vote.