Well I have come up with a solution to my problem. I created a button that I use to set multiple actions, First I toggle a variable from 0 to 1, then use a select possible action with expression to evaluate if my identifiable fields currently have values in the current selection box. If so, I select the comparable de-identified field. Then I use an action to clear the specific fields I want to clear. The expression allows me to evaluate the variable and reverse the action just be toggling the button. I do not need hide prefix nor am I using any system fields.
I solved the other half of my problem by laying a transparent text box over the expression columns so that the end user could not select the values.