Office Add-ins can enable custom keyboard shortcuts you can use in Excel to invoke add-in functionality. Each Office Add-in you install can change which shortcuts are available for you to use.
Setting shortcut preferences
Sometimes a new Office Add-in will register a shortcut combination that's already in use, by other Office Add-ins, Excel, or both. The first time you use a shortcut combination that’s registered more than once, Excel displays a list of registered actions for the shortcut and asks you which one to use. Actions from add-ins show the add-in name in parentheses.
Click OK to continue and then Excel runs the action you select and saves it as your preference for that shortcut. When you use the shortcut again, Excel performs that action without asking you to confirm.
Reset your shortcut preferences
If you’ve already selected an action in the shortcut conflict dialog box and you want to change the action that a shortcut takes, you can reset all of your add-in shortcut preferences by searching for the Reset Office Add-in Shortcut Preferences command. This command deletes all your saved add-in shortcut preferences so the next time you try to use a shortcut that has multiple actions, you will once again be asked to choose the appropriate action.
Enter Reset Office Add-in Shortcut Preferences in the Tell Me search box at the top of the application window.
In the list of results, select Reset Office Add-in Shortcut Preferences.
Important: This command clears all your Excel shortcut preferences, not the registered shortcut actions. The next time you use a shortcut that has multiple uses, Excel will again ask you to choose the action for that shortcut.