Do you mean track 13 or 14? I am not sure what you mean by 2 speed scrolling.
As user Geagle correctly guessed, I meant showing the track number of the currently playing track. As an example, track 13 on a 14-track album would show a small "13/14" on the screen. Sorry I hadn't clarified the example. A comment many months ago had hinted that the screen display was being reworked and that this might be included, so I was seeing if that was the case.
'2-speed scrolling' is just what I'm calling the DX50's bizarre scrolling ballistics, which only has two scroll speeds rather than a continuum*. When literally any other device scrolls through a list, it starts at the speed of the initial finger flick, gradually slowing and eventually stopping. The DX50, however, scrolls for a (seemingly) arbitrary amount of time at a fixed (fast) speed, then lurches to a slow speed, then stops. The slow speed/stop sequence is about a second at the most, so most of the scrolling is at a constant, non-decelerating maximum speed, which is very hard to read. Flicking slowly enough to trigger the slow speed is useless, because the slow speed never lasts more than a second. Try it. It's weird.
* I realize that from a programming perspective it's not a continuum, but all other touch-screen devices I've used--even very old, very underpowered ones--have enough speed steps (8? 12? 20?) to create the illusion of inertia, and give the user the ability to scroll at whatever speed they want based on how quickly they flick up or down in the list. 2 speed steps are not enough, and it makes me dread the normally-enjoyable process of browsing my album list for something nice to listen to.
