Xn Convert in Button Bar with drag'n'drop

[damat]

Hi!

Is it possible to create button for Xn Convert in the button bar and drag'n'drop selected files to it?

In menu is works like this:
Cmd=%COMMANDER_PATH%\Plugins\Tools\XnConvert\XnConvert.exe
Param=@%L "-output=%T"
Both selected files and target path are detectednand passed to the converter. But if you'll try to do the same in the button bar, it just won't work.

I have also tried to use %p%n and %s, but it just doesn't work.

Any ideas?