I tried the first option and it didn’t change anything…
Then second options kinda worked, but replaced my WALK/RUN toggle with the sprint.
e.g. I have CAPS LOCK set as my WALK/RUN toggle and LSHIFT as SPRINT
Suddenly CAPS LOCK worked to SPRINT but no longer toggle walk/run.
I think the answer is here - I just have to play with it a little. Thanks 