You can compare the schemas of any two trees to identify the differences between their classes or attributes. This is helpful when you are preparing to merge two trees.
Click Object > Compare Schema.
Click the top tree icon, click a tree, and then click OK.
Your current tree is the default, but you can choose another tree.
Click the bottom tree icon, choose a second tree, and then click OK.
Click OK.
If you have not logged in to the second tree, use the dialog box provided to do so now.
If you want to print the comparison, click Print, complete the Print dialog box, and then click OK.
When finished viewing the results, click Close.