Are Croquet mallets those things they stick in the ground at the end of the cricket pitch??
I'm not sure that I would use non-word wrap all that often either. Although I could see myself using it once-in-a-while.
My thought is that, I assume, the coding window is a Qt based widget. If that is true, I would think that word-wrap functionality is a setting that should be able to be set/unset with a simple selection. Sigil's GUI doesn't currently have that selection functionality, but I imagine if the OP wanted to add it to the feature request list, then the developers could prioritize it based on need and difficulty to implement.
btw - jk on the croquet mallet thing...
