Keyboard shortcut to add tag to Omnifocus task

Can anyone help me to create a keyboard shortcut to add a tag to an item in Omnifocus 3? Flailing at this....Thanks!

I’m not doing it for you but would suggest you think about the steps needed to assign a tag - if you were doing it manually.

(I’m thinking about menu items and keypresses, primarily.)

In all likelihood these are automatable.