Hi,
There's a couple of approaches you could take to this. . . .
If you just want to hardcode the same URL into your report so that it appears the same in each cell in a column, the following text mode would do it (obviously replace the URL with your own):
displayname=Help URL
textmode=true
valueexpression=CONCAT("https://experienceleaguecommunities.adobe.com")
valueformat=HTML
If, however, the URL differs for each line in your report, or you wanted the URL to appear as shortened text, you might want to consider using the native URL field in the system (present on issues, tasks and projects). Using the following text mode, Workfront will display "Click Here For More Guidance" in your report and when it is clicked on the user will be taken to whichever URL has been entered on the issue/task/project. If no URL has been entered into the native URL field, it will display nothing.
valueexpression=IF(!ISBLANK(URL),CONCAT("Click Here For More Guidance"),"")
linkedname=html(URL)
valueformat=HTML
displayname=Help Link
link.url=URL
textmode=true
The second approach wouldn't work on objects that don't have the native URL field however (i.e., anything not a task, issue or project). In this scenario you would need to attach a custom field to the object and place the URL inside of that.
Hope this helps!
Best Regards,
Rich.