Yamaha PM5D Quick Start Manual page 19

PM5D / PM5D-RH Quick Start Guide Part 3
Enhanced GUI (Graphical User Interface) for Add-on Effects.
The effects in library positions 46 to 54 come from a special series of "Add-on" effects and they have special control
GUI pages available in the Editor. These GUI are not available on the console screen but the effects obviously do run
in the console, just with a simpler GUI. The Rev-X GUI is especially useful in helping to understand the parameters of
reverb.
Rev-X
EQ 601
Comp276
Comp260
Opendeck
19