yar,

each group or component geometry will come across in the kmz as a new folder.

so....

while in SketchUp, group the geometry of you building/ buildings and then export out.

When in GE, just click on and off the geometry.

As for views....

you can set those in GE by right clicking on the kmz or any sub folder and select the Snapshot.

In SketchUp, set your page views and on export they will be tranfered over into the kmz. They will be under the TOUR folder.

Have fun