how to set comment for inlets of gen~ object when i hover over them outside of the gen~ patcher

GLDLZ's icon

i cannot for the life of me figure out how to set the text when i hover over the inlet of a gen~ patcher. i'm trying to use the @comment attribute but it will not work at all. what i want is simply to be able to set the text which appears when i hover my mouse over the right inlet of the patcher (in 2)

Valery_Kondakoff's icon