The best replacement for instructions is directions.

The best alternatives to instructions are rated as following:
★★★★★  directions
★★★  process analysis
★  procedures
★  instruction
★  sop
★  standard operating procedures
★  cai
  verbal instructions
  how to
  discharge summary
  machine instructions
  written instructions
  form 1040
  brief to counsel
  cms 1500 claim
  whole group instruction

Your alternative for instructions is not listed? Suggest!
Speaking about instructions, one probably shouldn't forget about diagrams.

Other search terms related to instructions and their ratings are:
★★★★★ diagrams
★★★ bossy verbs
★ imperative verbs
You have in mind a companion for instructions and it is not yet here? Propose!



Google Trends

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instructions
directions
process analysis