Creo Direct > Using Selection in Creo Direct > To Enable or Disable Preselection Highlighting
  
To Enable or Disable Preselection Highlighting
You can enable or disable preselection highlighting for use with query selection and on the Model Tree using one of the following methods:
Click the arrow next to on the Model Tree and select or clear the Preselection Highlighting check box.
Click File > Options > Selection and then select or clear the Enable preselection highlighting check box.
When you disable preselection highlighting, you can select entities using the Pick From List dialog box. Point to an entity and click Pick From List from the graphics window shortcut menu to open the corresponding dialog box.