New functionalities for dialog?

[Christophe Lohr]

Hi,
  May I suggest new functionnalities to improve interactivity of dialog?

For instance, when dialog has to present a very long check list, it would  
be nice to have some short keys (or accessibility keys)... for instance:
- press [J]: find and Jump to an item in the list
- press [O]: set all to On         
- press [F]: set all to oFF  
- press [R]: Revert selection
- press [U]: Undo last selection
- etc.

This could be implemented outside dialog, in a shell script arround dialog
(a sub-menu called by the extra-button), however it would be more convenient
if it was provided by dialog itself, isn't it ?

Best regards,
Christophe