The solution is not as simple as I first thought.

Just as in the firmware when an input or mix is added or edited, via the ui, the source cannot be none. So no issues should arise here.

The issue mainly occurs when the Models and Settings are read that are not compatible with the current radio profile. Companion preserves the invalid lines to enable the user to manually fix them rather than have to create whole lines from scratch. This introduces the possibility for errors and requires extra effort.

Checking and prompting when models are written would apply to Write Models and Settings to Radio, Simulate Radio, Simulate Model, Export Model, Save Models and Settings and Save As Models and Settings.

Also we cannot just drop inputs and mixes with no source as any references to those dropped lines would also break. Therefore the references would need to be fixed creating more effort.

Prompting when invalid lines are found and then if proceeding, dropping invalid lines and fixing references would be very annoying in situations say where the user is progressively converting models from one radio to another. Requiring the user to fix every model before activating any of the above features would not be acceptable.

Alternatively users could open the incompatible Models and Settings, create a new Models and Settings file, then copy models one by one to the new file fixing as they go to avoid the prompts and dropped lines issues. A backward step from what they have now.

Writing to etx files could remain unchanged, Write to Models and Settings to Radio could enforce fixing, however the biggest hurdle is Simulations.

I'm unsure of the effort or complexity but only valid models can be simulated ie invalid ones would not show in radio simulator. If practical could also apply to Write Models and Settings to Radio.

Thoughts?

How about if any model in the list has invalid entries:

• Show the model info in the list in red to indicate it has a problem (like we show in italic for modified entries).
• Clicking 'Simulate Radio' or 'Write to Radio' buttons pops ups warning that the operation can't be done because there are invalid models.

Basically disallow operations that would result in errors in either radio or simulator.

Might also help if the invalid lines could be highlighted when editing the model.

Might also help if the invalid lines could be highlighted when editing the model.

That might be okay for inputs and mixes due to the widget being used but not so easy for errors in other settings. I would favour a user instigated pop up dialog which lists all the errors and warnings. Add to context and model menus.

I would favour a user instigated pop up dialog which lists all the errors and warnings.

This sort of workflow?

1. Take a model/radio settings configuration that is invalid with current profile.
2. Get the initial conversion issues warning. Maybe have the option to skip / not apply corrections?
3. Carry on your merry way... perhaps coincidentally fixing some of those invalid settings or not.
4. Clicking 'Simulate Radio' or 'Write to Radio' buttons pops ups warning that the operation can't be done because there are invalid models/settings. (Phil's point above). Maybe a "Show Invalid" button that retriggers the validation/conversion checks.
5. You can keep retriggering the conversion checks / "Validate settings?" manually to keep bringing up the list of things that still need correcting.