One 35 Dawn setup

Apologies if there's a pinned post, happy to be redirected. Just got the one 35, I got the one without SD card as I wanted to put my own sd card and roms on. The individual emulators find the roms fine but I cannot add platforms to the dawn launcher (just has the default ps vita one and one game). I've googled it and followed the steps pointing it to my roms folder and updated the app and restarted the device but still can't get dawn to display the other platforms, can anyone assist? I'm used to my retroid with daijisho and that had a separate "add platform" button, am I missing that somewhere? Thanks in advance ❤️