More time access to watch downloaded episodes

Hello, I would like to suggest to have a longer time access when watching the downloaded episodes from the dramas I want to watch offline. Instead of only 2 days why not 7 days/1 week? So it’s less frequent on redownloading same episodes when I haven’t got to it yet. I have to erase it from download when it got expired and have to download it again to have it again available to watch offline.