What is exactly 2-key sr50?

[Ks4]

That means set strafe on + turn left/right in the same key or am I wrong?

Edited September 24, 2020 by kokrean

[GarrettChan]

I think it's a thing with sourceport support, which usually is considered as TAS.

[baja blast rd.]

Pressing the keys needed for SR40, plus the strafe-on toggle, would automatically result in SR50, without the player needing to manually add the relevant turn input. That caused a brouhaha with prBoom+ 2.5.1.4. Entryway, the port maintainer, then fixed it, after being threatened removal of the famous chainsaw behind the player start. (Oh wait not that Entryway. Sorry got my facts mixed up.) 

Edited September 24, 2020 by ‹rd›

[Ks4]

So, is it just a prboom issue?

 

 

 

Edited September 25, 2020 by kokrean