AFTER LOADING MY ELEVATIONS,GRIDLINES AND ELEMENTS USING THE EXTENTIONS TAB I AM FAILING TO view THE LOADED PROJECT IN 3D MODE. When I click the 3D Icon the screen becomes blank. How do I adjust the cameras to get the size of the drawing area to suite my viewing? Email to email@example.com.
If the model isn't visible in 3D and it appears to be due to the drawing window extents, you can try right clicking in the blank drawing area and selecting Zoom to Fit - do the elements appear?
In addition to checking the viewing area of the screen - could you also maybe give us some more details about what you're seeing?
What kinds of elements are you loading, and which Extension are you using? Not all of the Extensions will produce 3D graphics - some are only 2D.