hide item from popup

When my list of lines, markers, and polygons gets cumbersome, I would like to be able to hide some items without having to go through the entire list and find where the item is in someone else's organization. I would like to be able to hide the item from the bubble menu that pops up when I click on a line (or several). 

thanks for the great work on SARTopo. I use it on every mission now.