Hide not translatable fields in forms

@giuse69, see attached screenshot for what i'm thinking on this. The checkbox would be visible if the parent checkbox on field is checked. Question I have, should the default state be checked or unchecked for new fields? I'm thinking unchecked to keep in line with how Drupal normal fields work.

Hi @apmsooner, well, imho there is no direct comparison with normal Drupal fields since it does not have (unfortunately) subfields.
I think that if the "user may translate" option is checked, means that the overall custom field is translatable, so maybe checking also subfield is consistent, then the admin may uncheck some subfield is the translation applies only partially (i.e. to some and not all subfield).
So I am thinking something like the following:
-) first load of the form: nothing is checked
-) the admin checks overall translation => automatically all subfields are checked as translatable.
-) the admin unchecks some subfield => no automatic action occurs
-) the admin uncheck overall translation => automatically all subfields are unchecked, to keep the situation consistent.
How does it sound?
thanks for keeping on improving this module

This is good to go. I'm merging it in and creating a new release as the last one had a minor regression bug that broke the preview in image widget.

This new feature is available now in 3.0.3 release.