How to save playlist with one keystroke?

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How do you save changes to a playlist? This should be one keystroke - ctrl-S or something similar - but instead it seems to be five steps including retyping the name of the playlist. Surely I am missing something.

If you're in the playlist you have to:

1) Switch to a video window (i.e. not the playlist window)

2) Go to Media > Save playlist to file

3) Type the name of the playlist that is already open

4) Click save

5) Pop-up "file already exists, do you want to replace?" > Click yes