Having the question library is a great feature. 
I'm still in the playing mode trying to figure out all the bells and whistles. In the mean time I have created a few questions and added them to the question librbary. We have a couple problems: The type of survey we are creating is a mixed matrix and will have >100 sub questions under one main “question”. This question is really not a question, just a vehicle to get the sub questions into a survey and therefore we don't need a question title for the main question. I've made a few modifications to the question and have saved it to the library only to find out that it isn't writing over the existing question, it adds a new question – ok, if this is how it works, fine. Is that the intention to always save a new revision? The biggest problem is I now have a few questions on the list and none of them have a title
I have since deleted the source of the questions in the library but they are still in the list so I can't add a title to see which question is which. I don't see any means to manage the questions in the library- like deleting them. Am I missing something here?