Integrating Qt Help system with MSVS2017 (v15.9.17), Qt MSVS tools v.2.4.1(rev.12)

I assigned the shortcut Alt + F1 to the Help.F1QtHelp command, as described here:

"Select Tools > Options > Environment > Keyboard
In the Show commands containing field, enter Help.F1QtHelp
Select the Press shortcut keys field and press your preferred keys to add them to the field. The default shortcut is set to Alt+F1
Select Assign, and then select OK."

However, pressing Alt + F1 does not bring any result. Assigning others a shortcut also does nothing.