Replace: $1 $2 $3
You probably don't need the word boundaries (\b), but that'll help limit the search in case you have other lengthy strings of numbers in your document.
Thank you very much! Wish I had the knowledge to set the code up
Hi, Fozzie, finally getting back to this discussion....
It's well worth spending some time learning GREP for InDesign -- it can save you a lot of time in the long run. InDesign also offers a lot of point-of-use help that other applications don't. Just spend some time poking around the options under the @ sign next to the Find What field on the Find/Replace GREP tab. Select one of those items, and InDesign will insert the appropriate code into the field.
I'd also recommend taking a look at the following PDF from Michael Murphy:
If you want a better understanding of the code I supplied, I recommend installing Jongware's excellent WhatTheGrep.jsx script and enter the Search string when prompted. It'll create a document that tells you exactly what each part of the Search string is doing. You can find it and a lot of great GREP information here: