I have looked and cannot see a way to customise notifications sent to users who are notified because they are @ mentioned in the comment.
Is there a way to do this? My issue is that some users will get a notification when mentioned, but because they do not have access to the sheet they are unable to respond. We are looking at rolling out Dynamic View which would give the user the ability to see the comment in the Dynamic View that they have access to, but it would be good to send them the comment with a link for them to be able to click on and take them to the Dynamic View.
If I am right and this is not possible, I will submit a feature request for this, because it would seem to be something that would be quite useful.
Thanks,
John