Where do I learn how to use MDI?
ie when I have written several lines of code, then what
Does the code need headers? Name? tool # etc
Brian.

MDI is one line of code at a time so if you want to move XYand  Z to a position you could command G1X10Y20Z-5F100 or whatever, you can then type the next move etc. You can not enter multiple lines in one go but you can enter the next lines whilst the previous lines are being run, so you may have one line running and have already entered the next 3 or 4 in to the queue.
Hood