Moving Nodes in the Model Builder
Many of the nodes under the branches and subbranches listed in Table 3-2 can be moved around in the model tree. To move nodes use one of these methods:
Right-click the selected nodes and select Move Up () or Move Down (). Nodes that are the first or last of its kind can only be moved down or up, respectively.
The order of the nodes in some of the branches affects the evaluation of the sequence that they define. In the following branches and subbranches it is possible to move nodes up and down to control the evaluation of the sequence or the order in which they appear within the branch or subbranch (also see Table 3-2):
Definitions: nodes can be moved relative to other nodes of the same type (functions, selections, and so on).
Materials: Material nodes.