Initialization preferences are settings that you typically specify at the start of a project, you apply to all systems, and you do not change during the design process. Examples include settings for crossed objects, general connection rules, and the file locations for catalogs and style-based content.
Initialization preferences can be accessed from the Options button on the Application menu. Drafting settings control the on-screen behavior of the cursor by specifying parameters such as snap increments for distances and angles. They also control how an object being drawn will snap to existing drawing objects. The Options dialog box also contains settings for default part catalogs, building elevations, drawing layout behavior, and tooltip displays.