If you like free Operator Patches, you'll love Christian Kleine.
He is one of the great guys at Ableton support and regularly brings us goodies such as patches for the Operator and Pluggo's designed to use with Ableton Live.
In this video, I show how to make a simple 4 step sequencer using Clips and Ableton's devices and how it can be extended to have as many steps as you desire.
The technique shown in this video could also be useful if you want to try out new ways of coming up with sequences. It can be fully MIDI controlled and you can save the devices you came up with.
In this second part we see how you can change the tempo and/or time signature by triggering a scene, how you can expand the Mixer View and how to capture and insert a scene.