I've been too lazy to ask about this for some two years now, so I figured it's time..
I love the new versions of Renoise, but I've kept the old 2.8 version installed because of a specific function I never managed to find from the new ones.
Here's what I do in 2.8:
Whenever I render a version of a track, I open it up in the sample editor of Renoise 2.8 with a few other similar-style tracks for reference (and/or other mixdowns of the same track) next to it in the instrument list and then click on different parts of the tracks and play them on different pitches, sometimes back and forth using different speakers and headphones. This is an old habit I've always had and it helps me gain perspective with worn ears. A similar thing to how listening with L/R switched can help spot weirdnesses.
Sometimes you can't see the forest from the trees after having mixed a track for long periods of time, so it helps to play different parts of the track pitched higher and lower. It's also very useful if I quickly want to check whether a really low sub bass is in tune or not, if there's weird stuff happening just above my hearing range (but still within a childs hearing range for example - or a cats for that matter, har har) or if I just want to compare several mixdowns of the same track (simply using the mouse wheel to change the version from the sample list at an instant - Renoise always remembers the spot which is selected for playing, so this is ultra smooth for going through several mixdowns at several different parts of the track - at several pitches). This is about a billion times smoother and quicker in Renoise than in sample editors such as Sound Forge.
Cutting to the chase now: on the bottom part of the sample editor, on 2.8 you can select the note/pitch which is used when playing the selected spot/area (=by pressing enter). Since 3.0 it's not there and I never managed to find it again. So whenever checking my mixes I have to use 2.8.
Anyone know where I can find this button in the current version? (Just using the keyboard to play at different pitches isn't the same thing, since I want to be able to quickly scan to different parts of the track / reference tracks - using the keyboard always starts the sample at the beginning)