Slider.dataSelect Method
        
 Called when the adapter should enter data select mode. This means that left-clicking on the adapter will select a point rather than run an action.
 All actions will be disabled while this mode is on.
 
         
        Parameters
        
            - activate
            
 
            - 
                
Type: Boolean
(optional) Specifies whether the control should go into select mode or not.
 If not specified, it's assumed to be 'true'.
Optional: True