Bluetooth keyboard retuen hotkey?

[IIUBCROSS]

I got the new Microsoft universal foldable keyboard, and I connected it to my windows10 mobile phone. everything else is working fine but I just couldn't find the return key, and I also tried like alt+delete something like that, but nothing happens. if anyone knows any key or combined keys can do the return function on windows 10 mobile, please let me know, thanks alot

 

[JukEboXAuDiO]

I was simply blown away that you can use yoru Keyboard on it to begin with!