Topic: using JuiceBox Pro on M Macs
I have just run into one of Apple's Permissions problems.
When one tries to launch JB Pro on a Mac M, you may get a message that you do not have "Permission" to access the file but no helpful suggestion for overcoming that situation is provided.
The answer is actually that you must run JB on an M Mac in Rosetta mode.
Select the JBPro icon in Applications;
Get Info for the JB Pro software;
in the panel that opens, check the box to use Rosetta.
JB Pro will then launch in the normal way.
Hope this helps someone else!