1-4 Command Tools
A tool button displays a picture (icon) that represents an AutoCAD command. Most commands have equivalent tool buttons.
Determining the Command That a Tool Button Represents
Figure 1-11 shows the steps to find the name and description of the command that the tool button executes.
- Hover the cursor arrow over the selected tool button. - In the example shown, the Circle command tool button with the Diameter option is selected. 
- Hold the arrow still without pressing any mouse buttons. 
The command name appears in a tooltip. If you continue to keep the cursor arrow on the tool button, an expanded tooltip that further describes the command appears.

