This actually automatically installs version 12, which seems to be the latest version that works with Mavericks. But v12 didn’t have an automatic installer, which is why I recommended installing v13.
It also seems that you need to install a keyboard from the Keyman website, not from the built-in Download keyboard feature.
Hi James
First of all sorry for not replying before (here in Spain we had long holiday weekend)
You kindly tried it, and it works, good!, sounds perfect, so yes, as you recommended I’m going to try v13 + the keyboard from the Keyman website. Let’s see in my old Mac as well
Greetings
Olga