Yamaha MOTIF-RACK ES Owner's Manual page 5

About the OPT 2 Overview
Host
Application
OPT 2 is a plug-in format that enhances OPT Level 1 (Panels)
and adds some convenient functions for use with Total Recall.
In addition to doing Total Recall functions using the Studio
Manager as a host application, you can use Total Recall in a
DAW application (provided it is compatible with Total Recall),
via the Studio Manager.
OPT2
Studio
Manager
Plug-in software compatible with
Editor OPT 2 is indirectly connected to
the DAW application compatible
with Total Recall, via the Studio
Editor
Manager.
Editor
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