There are currently no details or properties, other than the name or type, for any elements other than adding them in by hand with the Component Creater. Adding these would be extremely useful for quickly identifying proper elements to use in a circuit.
Adding details that appear when the mouse hovers over an element on the screen, and making a toolbar that appears (maybe slides in from the right or left) with modifiable properties for a selected element would be beneficial for quickly troubleshooting a circuit, especially with the integrated Arduino IDE and circuit simulation.