Delete-all / populat-all icon in locale-string attribute

We often copy Product records, where in the copied record, one or multiple attributes need to be "cleared". I know this could be done through Excel export/import but it would be user-friendly if there would be a (role-based?) icon that would allow the user to clear the content in all locales for that attribute.

Similarly a "populate-all" icon would come in handy as well.

We do have e.g. a Product Name field that is a locale-string since we need to be able to enter translations for certain products, while for the vast majority we have "fancy names" which are the same in all 30 locales that we have. A "populate all" would be a great benefit...