Figure 1. Main Toolbar
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Some menu drop downs are "detachable" and are represented by having a solid bar across the top of the drop down menu. For example, the Logbook Reports list of menu options has a bar across the top, as shown in Figure 2 below. If you click and drag this bar the menu will actually detach and float allowing the user to keep the menu options in view for multiple uses.
Figure 2. Detachable Menu