Change auto-complete boxes to "contains" #31
Description
Currently both the input for service name and operation name are matching the prefix of the service/operation. I think that it would be more convenient if instead it was testing if the typed text is a substring of any service/operation. It would be more convenient to just be able to type a fragment of the name, especially when multiple operations share the same prefix.
#30 (case-insensitive matching) is related
A real-life example with a long common prefix:
