update to my prev. As i am 10hour noob in Unity, it takes me 3 hour to understand that ILayerable implemented methods invent the ability to ADD LAYER on right mouse clik at the track - and if i use one track and several layers - i get the GLITCH FREE situation. As i use pre generated library of clips for every channel value move - unity timeline seems like ideal sequensor with mixed control concept - i can work in raw channel-value control mode (with the ability of visualization in unity in parralel with artnet udp sends to real hardware) , and in the same moment i can place at timeline control events to start some generative algorythms or even send executive commands to stage crew )) . And all of this in sync with sound track and can be precisely adjusted in time. I dont know yet how it will work for 1.5 h show and thousands clips on timeline, but Unity is the best that i have in comparision with other sequensors Squeazer, Thaaanks !!! Unity team - please read this consideration, it's a new market for you, there's not so large effort to implement some features - to get new app fields for Unity.