Adobe Flash Professional CC 2014 v.13.0 - Manual (Page 75)

Note:
If the tweened object was the only item on the layer, Flash Pro converts the layer containing the object to a tween layer. If there are other
objects on the layer, Flash Pro inserts layers to preserve the stacking order. Flash places the tweened object on its own layer.
If the original object resided in only the first frame of the Timeline, the length of the tween span is equal to one second in duration. If the
original object was present in more than one contiguous frame, the tween span contains the number of frames occupied by the original
object.
3. Drag either end of the tween span in the Timeline to shorten or extend the span to the desired number of frames. Any existing property
keyframes in the tween move proportionally with the end of the span.
To move the end of the span without moving any existing keyframes, Shift-drag the end of the tween span.
4. To add motion to the tween, place the playhead on a frame within the tween span and then drag the object to a new position.
A motion path appears on the Stage showing the path from the position in the first frame of the tween span to the new position. Because
you explicitly defined the X and Y properties of the object, property keyframes are added for X and Y in the frame containing the playhead.
Property keyframes appear as small diamonds in the tween span.
By default, the Timeline displays the property keyframes of all property types. You can choose which types of property keyframes to
display by right-clicking (Windows) or Command-clicking (Macintosh) the tween span and choosing View Keyframes > property type.
5. To specify another position for the object, place the playhead in another frame within the tween span and drag the object on Stage to
another position.
The motion path adjusts to include all the positions you specify.
6. To tween 3D rotation or position, use the 3D Rotation or 3D Translation tool. Be sure to place the playhead in the frame where you want to
add the 3D property keyframe first.
To create multiple tweens at once, place tweenable objects on multiple layers, select them all, and choose Insert > Motion Tween. You can
also apply motion presets to multiple objects in the same way.
Tween other properties with the Property inspector
The Create Motion Tween command lets you animate most properties of a symbol instance or text field, such as rotation, scale, transparency, or
tint (symbols and TLF text only). For example, you can edit the alpha (transparency) property of a symbol instance to make it fade onto the screen.
For a list of the properties you can animate with motion tweens, see
Tweenable objects and properties .
1. Select a symbol instance or text field on the Stage.
If the selection contains other objects, or it contains multiple objects from the layer, Flash offers to convert it to a movie clip symbol.
2. Choose Insert > Motion Tween.
If the “Convert selection to symbol for tween” dialog box appears, click OK to convert the selection into a movie clip symbol.
When you apply a tween to an object that exists only in a single keyframe, the playhead moves to the last frame of the new tween.
Otherwise the playhead does not move.
3. Place the playhead in the frame of the tween span where you want to specify a property value.
You can place the playhead in any other frame of the tween span. The tween starts with the property values in the first frame of the tween
span, which is always a property keyframe.
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