Hi Louise,
It looks like you have a task report in the screenshot. You would not be able to show it on that report, but you would be able to do it on a project report using collection reporting, however you would loose the ability to in-line edit fields. The syntax for the column on a project report would be something like this:
displayname=Sent to Branch
listdelimiter=<div>
listmethod=nested(tasks).lists
sharecol=true
textmode=true
type=iterate
valuefield=Sent to Branch
valueformat=HTML
For more info on collection reports, you can check out this article.
Hope that helps!
