For instance, it is mandatory for all users to pick "Program location" from drop down menu: Program 1, Program 2, Program 3 and Other.  Is there any way to connect an item from drop down menu to the next field? I want to bind "Other" to the next template field ("If other, specify" single line text) Plus, I need only one of those 2 ("Program location" , "if other, please specify") items to be mandatory, not both of them simultaneously.

Thank you forward for any help