gvSIG-Desktop 1.10. User Manual
You can configure the values that gvSIG will use for zooming in or out of a view and changing the selection colour which by default is "Yellow".
You can also use this window to define map and measuring units for gvSIG.
You can use this window to change the view projection by clicking on the "Change" button. A dialogue box appears from which you can choose the reference system.