Place an atom on the canvas by selecting one from the Atoms toolbar (or simply typing its chemical symbol) and click on the canvas where you want to put it.
To draw a bond click the Bonds button on the Tools toolbar, select one from the drop-down list and drag on the canvas from an atom to another atom or to an empty place.
Changing a bond type is possible by different, easy ways:
select another bond type from the Bonds tool and click on the bond to be changed,
from the contextual menu: right click on the bond and choose another bond Type ,
move the mouse over the bond and type a keyboard shortcut (0...7).
Draw a chain by clicking on the Chain button on the Tools toolbar and drag on the canvas.
Place a template on the canvas by selecting a template on the Advanced Templates toolbar and click on the canvas. The template can be rotated by dragging until you release the left mouse button.
To increase or decrease a charge, select or on the Tools toolbar and click on the atom, or move the cursor over the atom and type + or -.