If you only wish to migrate a sub-set of the available object types, click the Detailed Selection button next to the object type:

Figure 9.13. The Detail View of the Object Type Selection Screen

The objects in the left window will be migrated. To ignore an object, select it and click the > button. To move an object out of the ignore list, select it and click the < button.

To exclude objects based on pattern matching, click the + button:

Figure 9.14. The Add Ignore Pattern Dialog

Patterns can include the * and ? characters, with * representing multiple characters (including no characters at all) and ? representing a single character.