It has an envelope editor to graphically edit value columns:
http://sites.google.com/site/neilsequencer/news/envelopeeditor
Also a proof of concept custom GUI for its' LFO machine:
http://sites.google.com/site/neilsequencer/news/lunarlfo
You can, of course, donate at http://goo.gl/qtf2S.
If you are not sure what Neil is read up here: http://goo.gl/vmvyP.
Cheers, Vytautas.
--
"Cheshire-Puss," she began, "would you tell me, please,
which way I ought to go from here?"
"That depends a good deal on where you want to get to," said the Cat.
"I don't care much where--" said Alice.
"Then it doesn't matter which way you go," said the Cat.