How to Automate Choice Quota Display Logic and Piped Text?

Hi.
1) How do I limit a user's selections in a matrix table to one only, over the entire table, rather than one per row? ie. they only need to be interviewed once, not once each day.
2) How do I deactivate a timeslot (not the entire question) for subsequent users, if a previous user has already selected it? ie. the interviewer only interviews one person per timeslot.
3) Is there a way to automate Display Logic if 'None' is selected as the option for when the quota has been met? ie. so I don't have to manually load the same condition for all choices in the question.
4) Similar to above, in that it relates to all choices in the question: if I enter Piped Text (eg. count / quota) against one choice, is it possible for all other choices to include the relating Piped Text, without having to manually enter it against each choice?
Your help is appreciated. Thank you.