To use, set "delay_message_clear = true" and call wizard mode Ctrl+T.
To echo return values from statements, prefix them with '=' and define the global __echo. (__echo = crawl.mpr will work for single return values.)
EXXUTRJ7BSDX32FA3CGJSXNIZUHKPPM6IDDUIXBPPLLHNF7R2CRQC