Click 
and then click Expand All or Collapse All. This expands or collapses all branches and displays only the highest, or parent part, assembly, or feature, in the Model Tree. To expand or collapse single branches, click the plus or minus sign in the tree node.
and then click Expand All or Collapse All. This expands or collapses all branches and displays only the highest, or parent part, assembly, or feature, in the Model Tree. To expand or collapse single branches, click the plus or minus sign in the tree node.