When adding a guide, it is automatically named after its guide type. Since you can have several guides of the same type in the same guides list, you might need to rename your guides to be able to easily differentiate them.
 How to rename a guide using the Guide Menu
How to rename a guide using the Guide Menu
                                                            - 
                                                                        In the Guides view, select a guide from the list.   
- 
                                                                        Click on the Menu button and select Rename Guide. The Rename Guide dialog box appears.   
- In the Rename Guide: field, type in a new name for the selected guide.
- Click on OK.
 How to rename a guide using the Guide List
How to rename a guide using the Guide List
                                                            - 
                                                                        In the Guides view, double-click on a guide displayed in the list. The guide's name turns into a text input field.   
- In the text field, type in the new name for the guide.
- Press Enter/Return.