PacsOne Server

I am currently using a system that automatically forwards all the Patients/Studies/Series/images that it receives to a Pacsone server. Obviously, in the absence of regular maintainence the Pacsone server fills up quickly. While maintaining the system it occurred to me that it might greatly enhance the Pacsone experience if web interface were equipped with two things:
1) A function to delete the oldest or least recently viewed files once a settable space limitation was met or exceeded.
2) A sorting mechanism that would allow someone to organize the Patients/Studies/Series/Images according to the information associated with the class.

1. It's a bit risky to automatically delete images without user intervention, since both pilot errors and/or programming mistakes could result in loss of image data.

2. It should be trivial to add a patient/study access tracking field to the database tables, so that the displayed patient/study list can be sorted by the last accessed time.