Isolation mode ? Sub-layers(styles) ?

 From:  Samuel Zeller
3415.1 
Hey guys,
Im working on a medium-large arch scene with lot of MoI styles
Is there a script wich hide all unselected + center view to the remaining pieces
Just like 3DS max Isolation mode ?

And is it possible to have another script wich hide all unselected (but keep edges visible) + center view to the remaining pieces ?
That way you have a wireframe of the rest of the scene to snap on and you get your main piece shaded

My second request, did you thinked about implementing sub-styles ?
For example putting a style inside another one, like a sub-layer

My scene is becoming very heavy and its hard to manage all the styles without sub-styles :)

Cheers