The new editor for content fragments allow to see translations (see screenshots) but doesn't allow to create a translations and you need go with the old editor with a bad UX experience
Use-case:
I'm an editor and I want to add a translations to a content fragments from the new editor and I need disable new editor go to assets folder and see translations versions and add new translations
Current/Experienced Behavior:
I'm an editor and I go to edit a content fragment. I click in the right panel and I see if has a translations if case I don't have a translation I can add a new translation
Improved/Expected Behavior:
Environment Details (AEM version/service pack, any other specifics if applicable):
This has been reported to the engineering under the internal reference SITES-29245. The product team will triage this request to verify feasibility based on the prioritization model. This post will be updated according to Jira's status.