Should be very easy, but I lack node manipulation knowledge and couldn't find the magic code words.
I have to add here that there is a built-in way to do this (or something similar to this) in CorelDRAW, without a macro.
For some Curves, using the two different methods produces wildly different results.
The silly thing is, once upon a time... I knew about this. I guess like 6 years ago, when I was first learning DRAW and thus exploring every single bar and button. With enough time, I forgot.
I meant to put an image in my other post but I'll put it here. It is the reason (THIS particular time) why I wanted an exact center. There have been many others. For this one, its because the "M" in the Gotham font does not come to a fine point. For most people, this means nothing. For laser cutting, I am frequently adjusting nodes for efficiency, performance, etc. and even just for the sake of some kind of symmetry OCD. I had already done it manually after posting initially, by drawing a line through the shapes midpoint and thus having something to snap a new node to. But now I have better way, a bit of code to play with, and a preferable solution for next time. Anyway, it was this:
If you select the Lead node and tap the + key on the number pad it will place a node exactly between the Lead node and the Following node.