Use guide layers

For help in aligning objects when drawing, create guide layers and align objects on other layers to the objects you create on the guide layers. Guide layers are not exported and do not appear in a published SWF file. Any layer can be a guide layer. Guide layers are indicated by a guide icon to the left of the layer name.

To control the movement of objects in a motion tweened animation, create a motion guide layer.

Note: Dragging a normal layer onto a guide layer converts the guide layer to a motion guide layer. To prevent accidentally converting a guide layer, place all guide layers at the bottom of the layer order.
 Select the layer and Right-click (Windows) or Control-click (Macintosh) and select Guide from the context menu. To change the layer back to a normal layer, select Guide again.
Related Information

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