If you select Set As Root from a container's popup menu, ABAQUS/CAE displays everything under the selected container in the Model Tree and displays the name of the container in the menu above the Model Tree. This option is useful if you have a complex model and a correspondingly complex Model Tree. You can use Set As Root to simplify the Model Tree by displaying only the portion that you are working on. For example, Figure 324 shows a view of the Model Tree on the left and contrasts it with the effect of setting the Materials container as the root.
When you change the default root container, you can use the menu above the Model Tree to move up through the model tree. In addition, ABAQUS/CAE activates the Up One Level and Set Root to All icons above the Model Tree, as shown in Figure 324.
The Set Root to All icon returns the Model Tree to the default view that shows the Model Database at the top of the tree.
The Up One Level icon moves the root of the Model Tree up one level; for example, from the Materials container up one level to the Beam model that contains the Materials container.