Before you can use the stand-alone desktop version for the first time, you will need to authenticate your single sign on from within D2L as follows:
Log into D2L
Go into a course
Go into a content module
Click on blue New button and down arrow select Create a File
Click on insert stuff icon, located to the left of the chain icon
Click on Panopto Embed Button
You will now see the embedded recording tool
Once you record you the file will automatically caption and upload, you will need the set the share option (refer to doc), you can also edit folder location, title, and you also have the ability to copy the link or use the embedded option if you record within D2L.