Mark,
Have implemented your widget and it works well. However, I'm having an issue with the click event. If I use the click on a point prior to using the widget, the popup contains the name of the "structure" I'm clicking on with a "zoom to" option. Then, once I use the widget and create a selection, and use the hover feature either over the grid, or the point, the name of the "structure" is retained if I use the click event on a "non" selected point. The click popup keeps the name of the "hover" structure until another hover is done (the structure name in the click popup doesn't match the point clicked. Have also loaded up the uncompiled version in hopes if finding where to change this but so far have not - any help would be appreciated. The widget has nice functionality - thanks!