Pick From List seems broken

[Neverstop7]

Hello!
I have tried to create a "Pick from list" tracker. How am I supposed to create a new line? I've tried to press 'Enter' but nothing happens. Should I separate items with a semicolon? I am able to create only a single item in the list.
Thank you in advance

[brandoncorbin]

What device are you using?

[Neverstop7]

I have finally figured it out. I use Mozilla Firefox. The 'enter' button doesn't work so you can't create a new line. However if I use Google Chrome everything works right,