I have noticed that is one of the most problem users are countered in large projects inside SketchUp is how SketchUp organize the model, so I am adding the following feature request as well:
I 'm sure that most of us here when they are creating construction document and collaborate with other firms, the “Material Window” will become very messy, design material will be mixed with Skalp Construction Hatch Materials, and some times adding a reference models inside SketchUp will add a lot of Materials to the Material Window which will make it hard to browse.
So having a Group Material option will keep the Material Window organized and easy to browse:
ate a new Group by clicking the "Details " icon.
3- We could delete the Group by right clicking on it and choose Delete option, a popup will be appear to choose what we will do with the content of the Group (similar to the layers deleting popup):
Also if we want to import any format to SketchUp, we could change the import option setting to do the following:
1- Import objects Layers as a Group,
2 -Import objects Materials as a Group
3- Default Name of the Group will be the file name of the imported objects.
-In the older Versions of Sketchup, these Groups will be display as a short code before the name of the materials(Similar to my previous suggestion for the Layers Group).