%
% zero the scope position here
%

_Scope.X !Scope.ZeroX
_Scope.Y !Scope.ZeroY
true !Scope.Zeroed
false !Scope.Series
_SerialA.Enabled _SerialB.Enabled and
{
 @SerialA
 @_Changed !Scope.Afocus
 @SerialB
 @_Changed !Scope.Bfocus
} if