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Rearranging the Model Hierarchy 
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1. Choose Search ® Browse the Model.
2. In the model explorer browse tree, press CTRL and drag the icon or label of the node representing the component you want to move, and drop it onto the label of the node representing the target location.
You can move a component in the hierarchy by pressing CTRL and dragging the icon from its place in the tree to the target location, if it is displayed in the workspace. For example, you could CTRL+ drag an iView from the tree into a page displayed in the Design workspace.
Dragging an element without holding down the CTRL key generates a same-name copy in the new location. You should always rename copied elements, to avoid problems with overwrite when you deploy the package.
