Why can't I change my Browser_Home key to an Insert key?

[nothotkey]

My keyboard has a Browser_Home key. When I push it, it opens my default browser to the home page. Hooray! I can successfully remap Browser_Home to just about anything by using "$Browser_Home::xxxxxx", whether it's a character or number lock.

My keyboard has an Insert key. It works fine: I used  ::{$Insert::{ to change it to a "{". Hooray!

But when I try "$Browser_Home::Insert", nothing happens at all.

Any assistance for why this is and what resolutions there are would be appreciated. 

[Scr1pter]

Good evening,

For me Browser_Home::Insert works.
Maybe you're not aware of the real function of the Insert key?
Just test it in an editor (or MS Word).

Cheers!

[nothotkey]

Good evening,

For me Browser_Home::Insert works.
Maybe you're not aware of the real function of the Insert key?
Just test it in an editor (or MS Word).

Cheers!

It does not work in MS Word, Autohotkey, or Atom. It does work in Sublime.