Reformat macro?

[Vern Hamberg <vhamberg@xxxxxxxxxxxxxxxxxxxxxxxxx>]

Y'all

Is there a macro or built-in function that will reformat source lines? I 
need it for editing UIM help. I want to avoid a lot of manual steps using 
ALT-S and ALT-J and keeping track of record length.

It'd need to break the selected lines at word breaks.

I can do this easily in TextPad. Probably other editors can, too.

TIA

Vern