Duplicate custom field

This seems like a basic feature but it seems it doesn't exist. Is there a way to duplicate a custom field? I have a single select custom field with a long list of options. I want to create another custom field that has the same list of options, but with a different field name. The only way I found to do this is to manually type in the same long list of options. It would be great to control-click on a custom field, see "Duplicate", and then open the field settings to change the name.