How to format Cowon X5 running Rockbox, please

[OnlyZen]

Hello - I'm fearful that this forum is so old that my post will go unnoticed. Anyway, I just bought a gently used Cowon X5 running Rockbox (v.3.10) so that I can play FLACs. I'm very excited to use it but cannot find, for the life of me, anywhere in the Rockbox documentation (nor the user screens) where/hot to format it. There are a ton of songs/games on here already, none of which I want.

Could someone please tell me the best way to format this and/or any other suggestions on clearing out songs/games.

Cheers!

[CrowdAds]