[loloquwowndueo]

Sounds like a gui editor for openscad would be just the thing for this, right?

[bluGill]

Unlikely - a GUI editor is likely to restructure a file on what looks like a trivial change and thus the result cannot be merged.

[WillAdams]

Why not a GUI editor which instantiates dimensions/coordinates, allowing the user to name/identify them (and then change their values either by changing the associated value or dragging the associated graphical element)?

[bluGill]

Where does it put each dimension/coordinate? So long as there is anything that could go in more than one place the GUI can rearrange a file. If the place is specified exactly then a minor change will change the sorting.

[WillAdams]

I suggested a list/pane at one corner for the actual list --- agree the UI is difficult and that there needs to be a way to set/adjust the association (see discussion on the PythonSCAD Google Group).

[aDyslecticCrow]

A gui with tools for openscad that map to real functions would do the trick.