How to have "All" appear in platform selection

[undermind77]

I noticed in ETA Primes video that Under "Platform" he is able to select "All" as a selection, displayed in picture below.  I can't figure out how to have this appear.

[C-Beats]

Tools > Options. Then Visuals > Filters Side Bar

[undermind77]

Thanks C-Beats! I knew it was going to be simple just didn't know where to actually look.