Like other users I rarely use markers/regions/signatures so it is mostly just a black bar above the timeline. Would be nice to be able to toggle its view on/off as an option so when you don't need it you can switch it off and as soon as you want to add a region or so you switch it on. I'd be fine also with an automatic solution, like it is off at the start of a project and as soon as you insert the first marker it expands.