Sets whether or not the given button should behave like a toggle button. If true the button stays pressed when the player presses it, requiring the player to press it again to return it to its unpressed state. If false, the button automatically returns to its unpressed state when the player lets go of it.
PRVirconBtnSetIsToggle(btnId, isToggle) 
The button ID.
true if a toggle button is desired, false otherwise.
n/a