my idea is to wrap within the column of text in the menu. e.g. the 3rd column of text. like reflowing. it seems better than all other solutions i came up with.
to me, the problem with truncation is that it requires horizontal scrolling. in my case, vertical scrolling is preferable to horizontal scrolling. by analogy, consider websites with pars that do not reflow. if you use large text, and every line goes past rhs. then you have to horizontally scroll both right and left for every line of the paragraph. with text columns, this can sometimes be less of a problem, if you can fit a column, but it is a problem if long lines exist in a single column, or if you want to compare columns line by line. horizontal scrolling is useful on general principles, if combined with toggle truncate lines, so i like the idea of adding it, but it does not solve this particular problem.
