[btschaegg]

This. Plus: Macros.

I just recently had an opportunity to flex my "wizard muscles" in a case where we had to feed a test consisting of about a hundred similar messages with minimal differences (numbers) to a system in order to reproduce an issue.

  "Can't we try to reproduce this?"
  "Maybe, but we'd need a lot of messages in order to reproduce this."
  "And...?"
  "That's tedious."

  "Watch me" *grinning*

A couple of edits and a `100@q` later, we were ready to go.