Enter tags/keywords in meta data schema as comma-separated list

When entering tags (the free text keywords, not tags from a fixed list), e.g. “engineer, female, tech, big data” in the meta data schema, there ae only options available where you enter one tag, hit Enter, type the next tag, hit Enter etc. This process is time-consuming, especially as many assets are supposed to have lots of tags. While AI tags can help with search, we can’t control them and you also cannot copy them to the main tag field to work with them. That means it is still necessary to enter tags manually. 
It would be way better to be able to copy/paste or type a list of comma-separated tags, e.g. “engineer, female, tech, big data” into ONE metadata field, and then hit Enter, whereas the system recognizes the tags as individual entities separated by comma and turns them into individual items automatically.