Having WAGTAILTRANS_SYNC_TREE = True syncs the whole tree of pages, but having WAGTAILTRANS_SYNC_TREE = False doesn't give an option to copy the whole tree of the page when someone wants to translate the page.
It could be useful to have a boolean option in the "Translate" page (/admin/translate//add/) to allow the copy of all the children of the page to be translated.
This could be useful if you want to translate a page, and also want the children of that page to be copied to the translated page
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Issue summary
Having WAGTAILTRANS_SYNC_TREE = True syncs the whole tree of pages, but having WAGTAILTRANS_SYNC_TREE = False doesn't give an option to copy the whole tree of the page when someone wants to translate the page.
It could be useful to have a boolean option in the "Translate" page (/admin/translate//add/) to allow the copy of all the children of the page to be translated.
This could be useful if you want to translate a page, and also want the children of that page to be copied to the translated page