To achieve this, please follow these steps:
Click the tab in the Ribbon which contains the item you want to rename (e.g. Index).
Click anywhere in the sub menu that is displayed and select Customise the Ribbon./
A new window opens (Options).
Double click the entry for the sub menu (e.g. Index).
Click the Group you want to change (e.g. General).
Scroll to the item you want to rename and click the Modify Item icon (the pen 🖉).
Type the new name.
Click OK and then click OK on the Options screen.
The new name is shown.
⚠️ Important If you want to revert to the default naming, press the Reset button on the Options Screen, and choose Reset only the Selected Ribbon Tab.
🤓 Tip: You can also use the Options screen to Export or Import the modified toolbars.