Shorter list of virtual proxies

We would like to have possibility to narrow down the list of virtual proxies which can be chosen on VMC sign in page with Qlik Session.

We have environment with double usage - development and production. That's why customer must choose correct proxy. 

We have many virtual proxies not related to Vizlib. Long list is for some customers confusing even if we have instruction which proxy should be used. Option to set default virtual proxy is not enough.

Ideal solution will be option to set which virtual proxies can be chosen on VMC sign in page with Qlik Session.