Yes, and also jog 
To all those thinking about playing for a bit until this gets fixed: unless you can hook up a gamepad, DON'T do Wicked Eyes & Wicked Hearts main story quest. I started doing it (KB&M) and running through it like a madwoman was absolutely killing any immersion. Luckily, I've emulated a PS3 controller to work, but yeah; if you're into immersion you will regret doing that quest without a walk toggle >.<.
Could you point us to instructions on how to do this? Would be really helpful for now.
I still think this is an oversight or bug. It is common that on M+K you cannot traverse at an intermediate speed, there are always just walk and run (like in Tomb Raider) and if you want smoother transitions you have to use a gamepad. But no walk at all is very uncommon.
How they expect us to walk near edges (necessary to find shards for instance)...dunno. Stupid.
This was exactly my experience. Totally ruined that quest. There is also a certain thing you do at many points that really require you to WALK, not run like a headless chicken.
So yeah, thanks for ruining that for us, Bioware!
This is the single most negligent thing the devs did to the game (not having the walk toggle). No way this game was properly tested with KB&M.
There is a video at YT from Bioware, in the title something about "build by pc gamers for pc gamers". If you wanna laugh (or cry) go watch it.