5 Optimum Altitude, Maximum Altitude, and Recommended Altitude
OPT—displays the optimum altitude based on airplane gross weight and speed
displayed on the speed line.
MAX—displays the maximum cruise altitude based on:
• current gross weight
• engine out operation
• selected speed option
• disregarding any altitude or speed constraints, and
• residual climb rate of 100 feet per minute.
RECMD—displays the most economical altitude to fly based on airplane gross
weight and cruise winds
Applicable to B788. Short answer to extricate is.. Yes