[REQUEST] Bringing back level select features from RTW

[sarnuel]

This is a continuation of #1. I do agree a search bar would be nice, but some level select nuance is still missing here:

In RTW, when selecting a custom level, you could hit 'A' on your keyboard to redirect the selector to the first .LV6 beginning with 'A'. This could be done for 'B', 'C', etc., 'Z'. Alternatively you could use page up/page down to go down however-many levels (a screen's worth, but we can say 15 or so to compensate for screen resolutions).