I hope my suggestion has not been suggested by others before.
I think we need a feature that behaves like a container or folder to allow us to categorize questions we post. It is very helpfull when we post many questions.
For example: I want to categorize my question into 4 groups, "satisfactorily solved", "quite satisfactorily solved", "favourite and useful questions", "miscellaneous".
Or we can create custom category tabs for short!