Currently the user can proceed when everything is OK or she cannot proceed when certain limits have not been met.

But sometimes you set a maximum a respondent could use, like in the question:

"Distribute at most 10 point among the following aspects" in a multinum question.

I would like to be able to give a warning: "You have not yet distributed 10 points. You have only distributed 7 points? Is that your intention?" and the user may indicate yes (which means proceed) or no (and she will be returned to the question.