Hello Klaus,
First of all thank you so much for your suggestion, I'll try to reduce the size of Hotspot under 180 degree FOV or I'll split the shape in two part.
I've no web-development programing background and I'm unable to modify the code as per your suggestion. And I'm using Panotour Pro for tour making so can you give this same suggestion in some more detail?
Regards,
Dhaval Gajjar