GOLDEN FAIRY:
its different, its suggestion about episodic duration means one episode how long is
but this thread suggests the entire series duration which means if a drama has 10 epis and per episode has 1 hour then the entire series duration count as 10 hours.
I've said we talked about it in that discussion, not that the suggestion is the same (but it actually quite is). To implement the total duration , having already the number of episodes you need to first implement the duration of each episode, since the total is just the multiplication of the two and can be easily added after the episode duration will be added first. The episode duration is already in the primary info on the dramas' pages, so it shouldn't be hard to add this info in the list's columns as well.