Fred Dibnah stylee, propping up with sleepers then dropping a match?
Same way I use my 190 twist the dials and press the trigger once you've clamped it
I was using setting 3-4 on the 6mm plate with a mid speed but I was having to be careful not to put holes in it
Just experiment on scrap til you find the right setting
so you just set about welding yours straight away then
I practiced on a bit of scrap first but got bored