I was wondering if there is any way to add variables together when displaying them in a reference in a slide. eg. I have three variables that are being controlled by sliders slider1, slider2 and slider3. Next to each slider I have a reference to the variable that updates as the relevant slider is moved. What I am trying to do is have a 4th reference that sums the total of the three sliders variables. something like: =(%slider1%+%slider2%+%slider3%) that will automatically change as anyone of the sliders is adjusted. any suggestions?