"... both blue tractors have 2 brake pedals that can be locked together. Both Blue tractors look very similar. So, I assume they ARE made by the same company..."
I've watched this video several times & THOUGHT I'd posted a link to it in this thread. But I just skimmed thru & didn't see a link to it.
SO, here's a link to a video which shows the pedal operation on a Workmaster 25 tractor. It will be exactly the same on the LS MT225HE.
https://www.youtube.com/watch?v=SnwSsnHXhao&t=340s