Isolate elements within an object.
Allow users to isolate elements that are attached to eachother. This would allow users to work on objects that might be difficult to work with once they are attached to a larger whole.
Another possible idea would be to design a button that utilizes Freeze and the opacity tool (default Alt+X) in one button. This would freeze all other elements, while still showing them, but allowing a 360 degree view and access to the element the user needs to work on.
Dave Wortley commented
This script could be adapted also so check whether the object was in sub-object mode and then would isolate the polys if so, or if not it would isolate the object.
Also, you can use my Hidden Polys Manager script, which will offers you much better workflow regarding the hidden faces/elements.
Watch this video: http://www.youtube.com/watch?v=aqmSKj3WEMM
Kristoffer Helander commented
You can hide polygons on a mesh that you don't want to see when working on a model. Convert to Editable Poly or use the Edit Poly-modifier, select polygons and under the Edit Geometry rollout click Hide Selected or Hide Unselected.