How to go through the security check after purchasing the Security FastTrack service?

Security FastTrack is a paid service that provides priority access to the security checkpoint in Terminal 2. Security FastTrack is only available for travel to Schengen area countries (Terminal 2) and is valid for a 60-minute time period (when booking online) and a 90-minute time period (when purchased at the ticket counter). The service cannot be used for passage with strollers and luggage other than standard cabin (hand luggage). The service can be booked online at least 2 hours before the scheduled transit or directly at the ticket office with immediate effect. 

What is the procedure for passing through security with a Security FastTrack service purchased?

Instructions for using the service (online booking)

1. Before the security checkpoint, look for the special entrance for the Security FastTrack service (on the left side before the central security checkpoint)
2. Scan your boarding pass
3. If prompted, scan your Security FastTrack voucher (QR code)

Instructions on how to use the service (purchase at the ticket office directly in the departure hall)

1. The service can be purchased at the ticket counter marked Security FastTrack (before entering the security checkpoint) in Terminal 2. The cost of the service is 200 CZK / person. The pass can be used within 90 minutes after purchase.
2. After purchasing the service, remove the ticket with the QR code and proceed to the Security FastTrack entrance (to the left of the ticket counter)
3. Scan your boarding pass, then scan the ticket with the QR code