This is a post by Natasha Reaves on the Rand 3D site.
When using Creo Parametric, it is recommended that you review a list of all of the entities that can be queried based on where the cursor is located. One way to query items is to use the Next and Previous shortcut menu commands. Another way to query items is to use the Pick From List dialog box.
The Pick From List dialog box contains a list of items that are located directly under the cursor, even if the item is hidden. You can select a desired item from the Pick From List dialog box and continue designing your model.
Step 1. Position the cursor directly over an entity.