applying keywords

Assigning keywords would benefit a lot from additional features like:

- assigning certain keywords to keyboard shortcuts. just like star rating or color taging.

- dedicated tool to assign one (or more) keyword. Like the arrow tool (selecting or add to selection folder or remove image). One click assigns the keyword(s), click again to remove it.

Sometimes my clicks aren't precise wehen cmd clicking to select multiple images to assign keywords to them. Annoyingly one click an an empty spot in the browser an my whole selection is gone and I have to start over again.

please help!

Thanks.