Cannot set "Scripting Define Symbols"

Select Menu > Edit > Project Settings > Player to open PlayerSettings in Inspector,
and in Other Settings > Scripting Define Symbols,
I’ve tried to enter symbols, but it disappears when I press tab key or click somewhere to change focus.

How can I set it?

OS: macOS Sierra 10.12.6
Version: Unity2017.3.0b3

It’s a delayed text field. Try pressing return/enter after entering the symbols.

6 Likes

Thanks, it works!

Wow, that is dumb