• For creating a new concept node: Click thebutton on the toolbar or press Insert key
• For creating a new function node: Click thebutton on the toolbar while pressing Shift key

The function nodes' IDs start with F while concepts with C. Function arguments are connected to the function with dashed arrows.

The tool first looks whether a node is selected. If no node is selected, the new node will appear in the left top corner and nothing else happens. If a node is selected, the new node will appear underneath the selected node and they will be connected by a newly created relation going from the old one to the new one. The direction of the relation can be reversed by right-clicking the center of the relation and choosing Reverse from the pop-up menu.