While QoS it is listed in the package manager, and after having "installed it", it does not appear anywhere on my TRB140 "services", as it should be . The Manual WEBUI state that : "The QoS (Quality of Service) page is used to set up Smart Queue Management (SQM)".
Thank you for your answer,....but.....
... the QoS listed under Traffic Shaping does not provide any possibility for SQM. And it is totally different from what is stated in the Manual WEBUI !