Problem with pro sites activation

A brief description of the steps i always follow:

Installation of Multisite with subdirectories.
Installation of all the plugins and themes i want to use in pro sites
Installation of Pro sites. After the activation of pro sites, in the left bar and more specific in the Premium themes and plugins i do not see anything?
notice: i have created all my subscriptions plans.
How can i fix it?

Also, i want to use one plugin in of my subscriptions and do not use in another subscription. Is it possible?