automatic preset save

hi,

i am writing a patch that will eventually become an app for a private individual. there are only a few number boxes where the user can set a few numbers, and i need it to automagically save the last number that it was set to before closing the patch. I tried all the different savemodes with pattr, but they only seem to save if the patch is saved.

I am trying to make the least amount of buttons available just for simplicities sake. any help is appreciated.

thx
matthew