you want to keep your judgments in gameplay and only hide them on your result screen?
if that's the case you just need to keep the judgments you wanna show on your results with the default names, as mentioned by
JustABeginner:
mania-hit0
mania-hit50
mania-hit100
mania-hit200
mania-hit300
mania-hit300g
and then the judgments you wanna show during gameplay will take the same name but with a "-0" at the end. Example:
my result screen looks like this, while my gameplay shows "Okay", "Good" and so on for the lower judgments: