At the top of the Review attempt page in the quiz, there is a table of summary information.

Several times, it has arisen that it would be helpful if plugins to add to or alter that information.

• This just came up again in MDL-72168.
• At the Open University, we have some renderer overrides to alter this table.
• Tony Gardner-Medwin's CBM changes include modifications to this table (although partly done with the specific hook whick lets qbehviour plugins inject things here.)
• I have a vague memory of others that have come up over the years in Quiz forum discussions.

So, would be worth adding a hook for this.