GUI example
Start Blender, in the VIEW_3D window, click the add button, select Batoms -> Molecule. The default CH4 molecule will be created.
On the left bottom corner of VIEW_3D window, click the Add molecule menu (if the menu disappear, press F9 to show it). Change the label and formula to “H2O”. Then a H2O molecule will be created.
On the right side of VIEW_3D window, click the Attach Render sidebar. Change the Viewport to: (1, 0, 0). Click the Attach Render again. Then press F12 to render the image.
Click the image button to save the image.