Hi Brian, I think this should do it.

Take the attached SidePane_deselect.zip file and unzip it to get a new SidePane.htm, copy this over top of the old version in the \ui subfolder in MoI's main installation folder. You may want to make a backup copy of the old version so you can restore it in case something doesn't work right.

With this in place, then you should be able to click in an empty area of the side pane to deselect objects. Try the area above "Draw curve", or the area at the very bottom.

- Michael