In Pro with an assembly open that has some sub assemblies, by default, if you mouse over a part in the geometry window the corresponding part is not highlighted in the model tree. If you click "Show" above the model tree and select "Preselection Highlighting" then this turns on highlighting of parts in the model tree when moused over in the geometry window. Unfortunately this functionality does not seem to apply to sub-assy's i.e. when i mouse over a part in the geomtry window that is part of a sub assembly then that sub-assy is not highlighted in the model tree. I would like to know if there is a config setting that will turn this functionality on? This would be particularly useful for complex models with many levels of sub-assy's as I could then mouse over any part and the corresponding top level sub-assy would be highlighted in the model tree. This would save the current practice of repeatadly "selecting parent" to get to the top level. Any suggestions would be appreciated.