Word wrap cut-off indicator

[gracefool]

This thread is a poll for the previous thread.

In some text editors I've used, there is a vertical line (solid or dashed) to indicate the currently-set word wrap position (or, in other words, it marks the right margin). I find this really useful when doing formatting of my files. I can always resize the TextPad window itself so it's only as wide as my desired number of columns, but that number of columns varies from one document class to another, and it leaves me having to resize the window a lot. It's especially frustrating if I have two documents of different classes open at the same time and want to switch between them, so I would love to see such an (optional) wrap-marker line in the TextPad setup.