moblie app issues (missing features and how to)

I downloaded the mobile app to try to help someone on the fCC discord who had a coding question because they were unable to:
- provide a copy of their code
- provide a url for the exercise they were struggling with
- find a way to post on the forum
- enable the interactive editor in the lecture

I am not sure if _any_of these are possible with the fCC mobile app?
Where are the docs that would describe how to do any of these?
If these features are not implemented, how do people get help with the code? (if they can neither copy and paste, or link or give us any useful information other than screenshots?)

Please advise.
thanks