When you utilize Creo + Windchill it could be nice having a visualization of the components' status directly in the model tree. Even now it is possible, but only through by adding columns with text inside; this scenario means a large model tree on the screen and a bad visualization (in my opinion).
What I suggest is the presence of the same windchill icons inside the model tree.
So, if a component is under checkout, I gonna see the blu/yellow square in the tree. Obviusly, this should be an option activable on request by config.pro or similar thing.