How to check how much license capacity is available at given point of time in horizon view as the license is based on either concurrent users or concurrent connections?
You can just check it in the Connection Manager admin page.
Go to View Configuration and then to Product Licensing and Usage
I am looking for license capacity of the license used in this view.
You mean the amount of licenses you have? If you go to your download site on MyVmware it should state the amount of license you have. Otherwise I don't know how to find how many licenses you can use.
Also, I have no idea what happens if you go past the limit. We haven't had this yet. Maybe someone else can elaborate on that?