Thanks Bruce for the tip on creating Segments in Strava.
I just tried it and it works so well!
As per Strava help page, the segments need to be created not on mobile apps. Also I can do it as a non-subscriber.
I used my pc and was able to create a segment (specific climb from bottom to top) and it created it. “Bay Run to Five Dock park climb”
And what is great is that I can retrospectively see all the previous times/data as I passed thru that newly created segment!
Also, while I was setting the start and end points of the segment, I could see the exact grade at fine increments along the segment!