[chirp_users] Trying to get VOX working on an RT20

Hello.

One of the reasons I bought a bunch of RT20s was that they supposedly come with VOX. Why on earth don't they preload it if the thing is advertised to come with it?

I am trying to talk to the radio via a MacBook Pro (13-inch, Mid 2012), running 10.15.7 (Catalina).

I have installed CHIRP legacy. I went to Download from Radio, but the RT20 isn't listed.

I am sorry if this is a repeat question, but I couldn't find a searchable version of the archives.

Thank you!

K