Copy the folder "com.mwh.orionhplusv***" to:

WINDOWS
C:\Program Files (x86)\Common Files\Adobe\CEP\extensions

MAC (use the function GO TO FOLDER!)
/Library/Application Support/Adobe/CEP/extensions

or use the .zxp file with Anastasiy's Extension Manager or ZXPinstaller, or use the exe file (windows)

Then you will find the panel in: Photoshop -> Window -> Extensions