Textronix 4010!!! I remember those. Back at the University of Pittsburgh (late 60's) I modified a CalComp plotter package to put out code for the 4010 instead. Then added "zoom" and other features using the two thumbnail wheels.
The Crystallography Department used it for Electron Bond diagrams. They used to take hours on the CalComp, seconds on the Textronicx, saved paper too.
System/360 was the 2nd sysstem I learned, cut my Hollerith teeth on an old 7090![]()