@pablo:
I just tried editing the values and see your point. 1st, the entry field is a bit too small (might be fixed in a future version of Ctrlr). But most importantly, you can only enter numerical values and they need to be in the standard MIDI format 0-127. This collides with the indication which I choose to be more compatible with the values displayed on the Nord itself (e.g., db values for volume, 0-10 for many parameters, seconds for EGs, Hertz,...). I don't see a way around this for the moment, but maybe you got an idea.
In general, it can be helpful I agree, but the restriction to the CC MIDI implementation prevents further improvement in particular of {both panels, used samples&Pianos, Name of Patch, the few non-CC sending elements}, so 100% will be difficult unless the Sysex Specs are released one day (and some serious programmers have some free time
)
As for the NL2x, there exists already a Panel:
http://ctrlr.org/page.php?p=ddbCheers & merry xmas!
Johannes