the script for study-1 doesn’t define any parameters, so “no parameters” is accurate.
the error is spurious. menu is trying to map a parameter, but there are none. that should be cleaned up.
if you want to see how parameters work, there appears to be a study just for that: https://github.com/monome/dust/blob/master/scripts/study/param.lua
(i guess this is study 6, not yet written up.)
is study-1 not working as expected in some other way?
it’s intended to just do the things it says in its intro comment, in “play mode.” but it seems to me that you’re navigating to the params page in “menu mode.” (presumably by hitting key1, &c.)