9515.3.2 Switcher DelegatesA short column of buttons positioned at right beside the fader lever determineswhat video layers (see Section 10.1.2) are affected by Cut, Auto, and Faderlever operations.These buttons are referred to as delegate buttons. When you press the TITLEbutton, the Title Overlay layer is ‘delegated’, and moving the Fader lever (forexample) will govern the display of the current title page.Switcher delegate buttons support multi-selection, allowing you (for example) tointroduce a new Background source from the Preview row while simultaneouslydisplaying a suitable Title overlay.Hint: FTB (Fade to Black) is located above the delegate button group, but isnot itself a delegate button.FTBSince it has come up here, let’s discuss the FTB feature next. The acronym stands for Fade to Black.The result of punching FTB will not likely surprise you very much. FTB offers a convenient method of doingwhat its name implies – fading Program output completely to black. It might help to think of FTB as a finalvideo layer added above all others before Program output, completely obscuring everything below it.As a memory aid, the FTB button pulses when the feature is on. FTB’s fade in/out duration is taken fromthe BKGD layer transition duration setting.Note: Hiding or displaying FTB triggers Autoplay and Audio Follow Video when these are active andthe CLIP player is displayed. FTB also fades Master audio out when displayed, and back in again whenremoved.15.3.3 Cut and AutoClicking the Cut button performs a straight cut for all video layers (other than FTB, which is a special caseas mentioned above) currently selected.Likewise, if you press Auto (or the keyboard Spacebar), the transitions assigned to any delegated videolayers are performed. You can halt an Auto operation partway by clicking the Auto button a second timeduring the transition. The operation will be completed the next time you click the button.15.3.4 Fader leverThe Fader lever is perhaps the most recognizable component of a video control surface, and one of the mostimportant. Adjust the Fader lever to manually modify the progress of a transition between delegated video layers.Hint: Naturally, when the fader lever is dragged part way, a partial transition occurs. With certaintransitions this can be useful for split screen effects, among other things.FIGURE 98