I have several buttons with no caption. When the default language is English and I remove the caption from an action button, the Dutch word still remains "Microflow". It is impossible to replace a string in a language with an empty string in the "Batch Translate" Option, nor through Excel import. Thus this all becomes teadious handwork.
A similar idea has already been submitted: https://forum.mendix.com/link/ideas/12 basically requesting a find and replace option for every element.