Have you ever wanted to highlight an entity and then highlight a different entity but not lose the highlighting on the first? With the ‘Toggle Persistent Highlight’ key binding option that has recently been added to Understand, up to four different entities can be highlighted at the same time. 

To use this feature, go to Tools->Options->Key Bindings and Search By Name for ‘highlight’. Assign a Primary Sequence to the ‘Toggle Persistent Highlight binding and Apply. Then, in the editor, highlight an entity, use the binding and it will highlight all entities that color. To apply the next highlight, repeat the steps and the next color is used. To remove one of the highlights, select a highlighted entity and use the key binding again. To remove all of the highlighted entities at one time, assign a Key Binding to the ‘Clear Persistent Highlights’ binding in Tools->Options->Key Bindings.