I am trying to create a survey and can't work out how to acheive the following logic:




1) A question where any of the 3 top checkboxes can be selected or not in any order, but the 4th is mutually exclusive, so A and or B and or C but Not D. If D is selected, A, B and C are deselected. 


2) A table with 3 Columns where you can select and highlight only 1 column (and it highlights the entire column).


3) A Matrix where you can't click NEXT/OK (Greyed out) until ONE from each of the columns in each row is selected.


4) Phone Number and Email address need to be valid (at least one dot and onyl one @ for example)




Thanks for any assistance in advance.