Mac equivalent of "insert" key not working
I'm trying to press the "insert" key to make a pop up notification in one of my video games disappear, but because there's no "insert" key on a Mac it's just not closing.
But the problem is, that fn + return (which is the "insert" for Macs) doesn't work in this case. I've also tried fn + option + return, and fn + command + return, but none of these worked.
I even got a separate windows keyboard and plugged it in with USB (& set it up), but still this doesn't work either. The keyboard itself works for all the other usual keys except "insert" which is just not making the notification disappear.
Any and all advice would be appreciated.
*(I don't know if this matters at all, but the game I'm trying to play is modded Minecraft, which uses Java)
MacBook Pro 16″, macOS 11.2