Add a hint in admin for multi-lingual instances

Is your feature request related to a problem? A clear and concise description of what the problem is.

As an admin working on a multilingual instance which default language isn't my browsers language I can get quite frustrating because I feel I have to fill in all the fields in all languages to be able to work on a process. Indeed I get an error if I try to save the form. In reality it's not the case, I just have to fill in all the field in the default language, this way I can save.

Describe the solution you'd like

It would be nice to have hint in the admin (in the altert message or just a help text I can hide) that tells me that I can only fill the fields in the default language to save the form.

Something like ""to fill form with not all language, you need to fill the default language" 

Describe alternatives you've considered

No

Does this issue could impact on users private data?

No

Funded by

EU Commission might fund this