In my MacPro notebook, I have a powerpoint 2016 for Mac and have just installed camtasia 2020.0.2. I want to use powerpoint addin for presentation. The online turial does not fit to the mac powerpoinf. Under the tool command, I found the powerpoint addin command, but I cannot resister the camtasia, though the greyed icon is visible. Please let me know how I install camtasia addin to the powerpoint slide.