[Q] Knox-Free Rom and SELinux Question

TL;DR

If I flash a ROM which is "KNOX Free" (such as ExtremeDebloat Rom by elliwigy), will I be able to set SELinux to Permissive?



Details

Ultimately, I am trying to get my appradio 3 to be able to send touch screen input to my S5 (SM-G900V). I believe the reason I cannot get it to work yet is because SELinux is in Enforcing mode. There is an app called SELinux Mode Changer that allows you to toggle from Enforcing to Permissive by just tapping a button, but from what I have been able to find while researching the issue, it will not work on KNOX-enabled devices such as the Galaxy series. If I use SafeStrap on my rooted device (since the SM-G900V has a locked bootloader), flash a rom without KNOX, and install SELinux Mode Changer, will I be able to set SELinux to Permissive?



I apologize if this has been answered somewhere else on XDA. I searched but was unable to find an answer on here. Honestly, I'm a noob with this stuff so I might have even come across an answer and not recognized it haha.

Thanks for the info. It saved me a lot of time trying to test that out myself haha.

So currently no one has found a way to set SELinux to Permissive on the SM-G900V variant of the S5?

Thanks. Yeah the app always says it worked but if i exit and go back in it says it is enforcing again and the status under About Phone never changes.

Also, when Super User is first started, it asks if you want it to try to disable KNOX. I said yes and it said it was successful. What exactly did it do?