Coordinate system in GUI does not match machine

Hello everyone,
I probably have a very simple beginner's question that I just can't figure out how to solve.

I have a milling machine with x,y and Z travel and my home coordinate system is at the top right. I assume that you can do it this way or is this fundamentally wrong?

So that my coordinate system looks like this:

But the coordinate system in the GUI shows the opposite.

Video for better explanation: Link to video

I guess that my z-axis is the wrong way? Or the Y-Axis? And I also don't know which parameter I have to change in the ini-file (see attachment)?

Maybe someone can help me out with that.

Best regards

 

Thanks a lot for your two links and the tip with the StepConf. After changing the coordinate system to the near left side, I only had to invert one axis in the StepConf. Now everything works fine