Effectrix is an effective device to sequence your effect changes - a good visual solution for a thing we are doing constantly. Its developer, Sugar Bytes set the price to 99 euro - not bad, and it really does numerous things like 14 different effect types, a 32 step sequencer with 12 pieces of subsequences that are switchable with Note On messages, and two continuous controller per effect that are also automatable. The demo videos show excellent usability, check them.