199 on the Mask layer, and press F7 to insert a blank keyframe. [View full size image] Creating a Blinking Effect In the birthday card, the text is interrupted by a low battery message. To make that battery icon blink, you'll simply insert keyframes and blank keyframes, so that the battery appears and disappears from the Stage. 1. Select the Low Batt layer. 2. Press F6 to insert keyframes at the following frames: 206, 213, and 220. 3. Press F7 to insert blank keyframes at the following frames: 203, 210, 217, and 224. Applying the Mask You've drawn the rectangles to mask the text, but the mask doesn't take effect until you apply it. 1. Right-click (Windows) or Ctrl+click (Mac OS) the Mask layer. 2. Choose Mask from the context menu. Flash indents the first layer under the Mask layer. You'll nest other layers later to mask them, too. Applying Onion Skinning Onion skinning lets you see multiple frames on the Stage at once, so you can see how your animation moves. Here, you'll use it to see the text as you rotate multiple layers at the same time. 1. Click the lock icon above all the layers to lock them all. 2. Unlock the Mask layer and the text layers beneath it, through the I Hope layer. 3. Click the Edit Multiple Frames icon () beneath the Timeline. 4. Click the Modify Onion Markers icon () beneath the Timeline, and select Onion All from the pop-up menu. [View full size image] 5. Click the Show As Outlines icon () for the Mask layer. With the masked rectangles as outlines, you can see all the text. [View full size image] Rotating Multiple Layers As you typed it, the message was at a different angle from the cellphone screen. You'll fix that now, by rotating all the relevant layers-text and mask layers-at once. 1. Choose Edit > Select All. All of the text and masks are selected. 2. In the Transform panel, type -22 in the Rotate box, and press Enter or Return. All the text boxes and the masks rotate to match the cellphone screen. Note If the Transform panel isn't open, choose Window > Transform. [View full size image] 3. With the Selection tool, move all the selected text to the center of the phone screen. You can use the arrow keys to nudge the text into position. 4. Deselect the Edit Multiple Frames icon.