Timeline toolbar

To draw an event, click the Draw Tool button on the toolbar to select it (or press Ctrl + D). This is the default tool, so it may already be selected. Then click on the timeline and drag the mouse cursor horizontally to draw an event, as shown in Figure 2.12. 

The Selection Tool on the toolbar in ACID can also be used to select multiple events. Click the Selection Tool button on the toolbar or press the D key on your keyboard to cycle through the various editing tools. To select multiple events, click and draw a rectangle on the timeline (as shown in Figure 2.24). 

Click the Insert Selection button on the Chopper toolbar. An event appears on the timeline corresponding to the selection area in the Chopper. 

The Chopper toolbar contains a number of tools to make selection modification and timeline cursor movement possible (see Figure 4.13). 

The Arrow bar and arrow in the Chopper represent the total length of time that is inserted into the timeline, regardless of the selection area. By default, the arrow and the selection area are always the same length. Click the Link Arrow to Selechon button on the toolbar to toggle between whether the arrow and the selection area are independent or not. The reason for doing this is shown in Figure 4.14. 

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