Check Box Value Issue

I used to be able to select True or False in the Properties Value but know it only says NO value when I bring in a new check box or check box field. Confused as to why.

Why do you want to set a check box to a static value of true or false? Under Value you can click on the X and then select a boolean variable to bind this checkbox to. Then the checkbox will reflect the current value of that variable (and vice versa)

I was just asking because it was once displayed as an option then randomly it was no longer.