This application is built on the concept of tools. Loosely speaking, tools provide the ability to perform a certain class of operation or procedure to viewing and editing a drawing.

 

Active Tool

Only one tool may be active at a time. By choosing a tool from the toolbar or shortcut key, you are making it the active tool. In the case of stackable tools (below), only the "top most" tool is active. The Tool Properties show properties and options available for the active tool.