Hi, To my knowledge if the model was made in Bryce with primitives you can't export it (This is why it is grayed out on you.) The only things you can export are Terrians and Lattices that are Bryce made. (I know this sucks) To export an object that you imported (3DS, DXF etc..) Just select the object and click on the "E" (edit mesh). Next don't select the any of the smoothing options use CTRL+D you should get a dialog box that will let you export to another format. Hope this helps. Also there are other threads that cover this if my directions were not clear.