[chrisblair]

Think I may have a solution - not quite the format I envisaged but works OK for this. Issue would be if the Team Name used for the Contexts were not unique for the project.
Contexts named Tom Dick and Harry are unique for this Project so next time I need this sort of report I may need to create unique contexts again.
Cannot see any way to filter this report for a particular project which would work around this issue.
Here's the workaround to produce a report sorted by context (team names)
Select Context Mode
Highlight the 3 contexts Dick Harry and Tom using Shift Command keys
And the list is sorted by Context, and in this case, as the Context is the team name, sorted by team name.
If the Contexts were used in other Projects then those would be included in the report, but not so in my situation here.