Paul Davies has proposed two improvements in SBMAX64 which are already in 32bit editor:
Ability to change the width of the right (envelope) section of the Echogram window - attached is the one from 32bit, not available in 64
Echogram window in 64 does not apply tides to it. I.e. if you offset the tides, echogram still shows initial vertical scale while profile changes. 32bit editor has this one.