Forgot an obvious way of saving Bryce objects. Include them in the Object presets by clicking on the small triangle to the right of the CREATE selector. You can save a selected object into an existing file by using the ADD command. You can also create new directories which can be accessed by clicking the down arrow on the bottom bar of the Objects floating panel. Also, by clickng on an existing object you can export it to its own .obp file by using the Export command in the Objects floating panel.