disk space management

constant problems managing disk space on Contour 2 dvr

1) is there a way to expand capacity  [ex: external disk drive or what i believe is disallowed option to download from dvr to personal computer]

2) is there a way to tell in which order recordings will be automatically removed to make way for new recordings

3) is there a way to tell the amount of space taken up by each recording [to help prioritize order or watch/remove ]

4) record options are binary: a) until space needed  b) for 1 year

4a) 1 year from when?

4b) is there a way to sort saved recordings based upon date recorded and/or the "1 year" that is chosen

4c) is there a way to reset the "1 year" clock

From all appearances, the end user really has no control or ability to see what might/will happen when disk space runs short, so a follow-up

5) is there a way to identify which shows have been automatically deleted without being watched?

6) when the software decides which recording to remove, does the algorithm take into account which show will/will not repeat

6a) if it does priortize by first nuking shows that will re-run, does it automatically reschedule recording of that to-be-nuked show