Montana 700 widget question

I have a user who's installed one of my widgets (and others) on his new Montana 700. The Garmin apps (Express etc) say they're installed but he can't find them to run.

The manual is not much help and Support say ask the developer. I don't have access to this device or any or experience of it.

I've made suggestions that haven't helped, so now I don't know if he's being dumb or if it's a real issue.

So my question is: where, on the Montana 700 family do you find installed Connect IQ widgets and how do you run them?

I'm hoping it's a simple question that someone can answer very easily.

Thanks in advance

Simon