Controls do not preserve their saved state

Hi,

When I check into Mathcad help, in the controls section, I can read this: “When you open a worksheet, Mathcad re-initializes all of the controls contained within the file. As a result, Mathcad may reset certain controls - typically, list boxes - and thus not preserve their saved state.” I wanted to know if it is possible that a control (list box or check box) would not be re-initialized each time a worksheet is opened. I would like to have the state of the control saved. Is there a script line who could do that?

Thanks a lot!