Either add a basic ISDC details dialogue (re-establish the existing one under DCP). Or, as mentioned in another mantis entry, allow to set language under audio and in timed text. In 2.14.2, I can set the timed text language, but it is not reflected in the ISDCF name. And there is no option to specify audio language at all. But I think even in simple mode, at least a basic complete ISDCF name needs to be created.

I know this approach has limits. If e.g. I add separate multichannel files, each one would have an option to set an audio language. What if there are multiple different language IDs given? Which one is dominant? Should we better specify audio language under the DCP->Audio tab? Maybe that would be the better solution, as it clearly relates to the whole CPL, and not the individual source files?

Even in simple mode, ISDCF detail defaults from prefs could be used.

However, as there is a selector for content type in simple mode, I guess a straightforward approach would be to add audio and subtitle language input fields there as well.