Copy this code to the clipboard, go to the Directory Opus, and 
paste "Copy" button to the toolbar in the Customize mode. 

<?xml version="1.0" encoding="UTF-8"?>
<usercommand backcol="none" textcol="none">
<label>TeraCopy_CopyFile</label>
<tip>Copy files with TeraCopy</tip>
<icon1>%ProgramFiles%\TeraCopy\TeraCopy.exe,1</icon1>
<function type="normal">
<instruction>%ProgramFiles%\TeraCopy\TeraCopy.exe Copy *{allfilepath|filem} {destpath}</instruction>
</function>
</usercommand>

Repeat with this code to insert the "Move" button.

<?xml version="1.0" encoding="UTF-8"?>
<usercommand backcol="none" textcol="none">
<label>TeraCopy_MoveFile</label>
<tip>Move files with TeraCopy</tip>
<icon1>%ProgramFiles%\TeraCopy\TeraCopy.exe,2</icon1>
<function type="normal">
<instruction>%ProgramFiles%\TeraCopy\TeraCopy.exe Move *{allfilepath|filem} {destpath}</instruction>
</function>
</usercommand>