Make the mappings in the REST CALL-activity debuggable.
The REST CALL-activity is very nice. Makes your microflow clean.
A minor negative issue however is that you do not see directly what (if any) export mapping is used. And a bigger negative issue is that, while debugging, you are not able to check the result of the mapping.
Probably not easy to make debugging possible, but it would be very useful.
Same goes for the import mapping used to parse the response.