Adobe Flash Professional CC 2014 v.13.0 - Manual (Page 713)

Note:
Tutorial: Timeline animation in Flash (Layersmagazine.com. Creating a tween, editing the motion path.)
Video: Altering the curve of a motion path (Length = 3:45, Peachpit.com)
Change the position of the tweened object
The simplest way to edit a motion path is to move the target instance of the tween on the Stage in any frame of the tween span. If the current
frame does not already contain a property keyframe, Flash Pro adds one to it.
1. Place the playhead in the frame where you want to move the target instance.
2. With the Selection tool, drag the target instance to a new location on the Stage.
The motion path updates to include the new location. All other property keyframes in the motion path remain in their original locations.
Change the location of a motion path on the Stage
You can drag the entire motion path on the Stage or set its location in the Property inspector.
1. Click the Selection tool in the Tools panel.
2. Select the motion path by doing one of the following:
Click the tween span in the Timeline and then click the motion path on the Stage.
Click the tweened object on the Stage and then click the motion path.
Drag a marquee around the motion path and the target instance to select them both.
(CS5.5 only) Select multiple motion paths by Shift-clicking the motion path of each tween you want to edit. You can also drag a marquee
around all of the motion paths.
3. Move the motion path by doing one of the following:
Drag the path to desired location on the Stage.
Set the X and Y values for the path in the Property inspector. The X and Y values are for the upper-left corner of the bounding box of
the motion path.
Use the Arrow keys to move the motion path.
To move the tween target instance and the motion path by specifying a location for the motion path, select both and enter the X and Y
locations in the Property inspector. To move a tweened object that has no motion path, select it and enter X and Y values in the Property
inspector.
Edit a motion path with the Free Transform tool
1. Click the Free Transform tool in the Tools panel.
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