I'd like to suggest two more filter options regarding the time frames:
similar to the options "30 days ahead" and "7 days ahead", I want to have the possibility to select "30 days past" and "7 days past". I wouldn't mind a 14 days filter in between those either.
I would need something like this in many Dashboards, where I want to look at which tasks have been completed in the past week (or month). The "last week" filter is not precise enough, because it would not show the tasks that have already been completed in the week you are in right now. The "This week" filter wouldn't really show anything at the beginning of the week.
The post below where it is suggested to select multiple filter options would also help with that problem.
I hope this is something you can get around to. It would really help us to get the most out of dashboards.