Nice in ImgTool to add features, quite obvious when you say it, it is there in clear text..
The method to set the label to "none" in MPC did not work for me but the TYPViewer method works fine.
A little tricky though, if you just uncheck the "Extended Labels" the labels still will show. You need to have it checked and select "No label (invisible)" to make it disappear. However this is a nice feature I will use to customize the label appearence in many of my maps that does not show labels the way I wanted in my gps models TYPViewer is such a good tool to quickly change the appearence of a map!