Setting default values for custom metadata?

I’m wondering if there is solution for placing default values within custom metadata fields. Currently I have a slew of custom fields to get the info into the MRSS feed, but inputting a lot of these values manually every single time is going to make uploading tedious and excessively repetitive. Is there a way to make these a value by default that can be edited if necessary?

I use custom metadata,but I have not found a solution in KMC/Kadmin to have a default value in custom metadata. I fill/filled the metadata via API.