If you use navigation:
Action on page, afterdisplay:
NAVIGATION(Navigation Objects='Button Next', Action='Disable')
and action on f.i. quastion, On Attempt:
NAVIGATION(Navigation Objects='Button Next', Action='Enable')
If you use navigation:
Action on page, afterdisplay:
NAVIGATION(Navigation Objects='Button Next', Action='Disable')
and action on f.i. quastion, On Attempt:
NAVIGATION(Navigation Objects='Button Next', Action='Enable')