Update:
1) You can now copy pose directly from vap and json format Pose files. The jpg image of the loaded Pose file will be displayed on the Custom UI. After loading the file, select "Pose Preset" as the Source.
2) Added a "Keep body orientation" toggle that prevents the Target Person's body from twisting when the Source Person's Atom contol and chest Control orientations are significantly different.
3) The state of each control is set to "On" when moving. Controls set other than "ParentLink", "PhysicsLink", and "Comply" will return to their original state after moving. Added an option to leave it "On".
4) Since Pose Morphs other than Pose Morphs of BuiltIn's hands / fingers are not copied, they can also be used for the purpose of making facial expressions expressionless.
note:
This plugin isn't perfect, so some Pose won't do what you expect. note that.