This is a very simple macro that allows you to toggle the state of selected tokens. It is potentially useful to a GM who has players that can mark - simply set the name of the state at the beginning of the macro. It is useful to have a different button (stored locally or in campaign macros) for each player's mark. You can quickly select several enemies when marking with a blast/burst power or for switching marks you can select both the old mark and the new mark and it will toggle as wanted.
Special thanks to zEal who made this macro for me.
[h: StateName = "Marked_red" ] [h, foreach( Selected, getSelected("json") ): setState(StateName,if(getState(StateName, Selected),0,1),Selected) ]