Add blue bars to bottom and side of VIewer screens for moving around in a model

I work with several viewers who a) don't use a mouse, and b) find it difficult to see the "white on white" box for scrolling around a model.

As one with editing access, I alsoMUCH prefer the blue bars on the bottom and side of the model. The model overview option is good, but my Viewers are asking for scroll bars.

Thank you.