Citavi's Word Add-in cannot override keyboard shortcuts already defined in Word during installation. However, it is possible to manually assign a shortcut to jump to Citavi's Search Title field from Word:

1. Open Word.
2. Go to File → Options.
3. Click Customize Ribbon.
4. Next to Keyboard shortcuts, click Customize.
5. In the Categories list on the left, select Macros.
6. In the Macros list on the right, select CitaviPanelActivateReferences.
7. Click inside the Press new shortcut key field.
8. Press the preferred shortcut, e.g. F8. (Note: You'll see which command was previously assigned to that key. If you don't want to lose that assignment, choose an alternative like Ctrl+F8.)
9. Click Assign, then Close.