[Zubersoft]

One option is you can edit your files and place {np} directives to force a new page at certain points, preventing the multiple columns. You could also just insert one long line per page to prevent columns from being used (i.e. you could have a ton of spaces followed by an underscore, period, or any other character that won't draw attention). Alternativey, increase the text size to prevent multiple columns from being used (although I know you said you don't want large text). Otherwise I would need to add an option as to whether to use multiple columns for individual files. You are the only user to bring this up as an issue so far, so I'm going to need to hear from more users as to whether really warrants a new setting and all of the changes required for it.

Mike