Are you asking how to do it on the WE, or just how to do it?
I’d probably fire up that belt grinder you have. 🙂
Draw on the blade how you want it to look, then grind 90 deg. to the edge and/or spine (being careful not to overheat of course).
I’d probably do this one on both sides…
I did a knife a while back… intending to do it all on the WE, but about 1/2 way thru I folded. :dry:
(You can read it here if you want.)
Most was done from the edge side, but a bit from the spine.
Just make sure you grind far enough back to keep a nice shape…. working toward the edge works for me.
Hope that helps.
Another thread to look at…
Tip Repair
Edit: Put this in another thread… thought I’d add it here too.
After seeing it in the video… you could just do a spine side repair…