I like all these suggestions, and some of them are on the roadmap already. I think that the MultiFilter problem can be solved with a bundle though. Try this:
Copy and paste the bundle into your behavior window, the click on it and select “Add to menu”
{"behavior":{"nodes":[{"name":"MultiFilter","x":540,"y":256,"inputCount":1,"group":"","isMenuItem":false,"behaviorType":"logic.NodeGroup","outputCount":6,"id":"52441a5a85c71341"},{"name":"Bundle Input","x":90,"portId":"52441a5a85c71341i0","tag":"input","y":384,"inputCount":0,"group":"52441a5a85c71341","behaviorType":"logic.NodeGroupInput","outputCount":1,"id":"52446873fd519845"},{"name":"Bundle Output","x":630,"portId":"52441a5a85c71341o2","tag":"3","y":288,"inputCount":1,"group":"52441a5a85c71341","behaviorType":"logic.NodeGroupOutput","outputCount":0,"id":"5244a84edf007647"},{"name":"Bundle Output","x":630,"portId":"52441a5a85c71341o5","tag":"6","y":576,"inputCount":1,"group":"52441a5a85c71341","behaviorType":"logic.NodeGroupOutput","outputCount":0,"id":"5244e14317187d47"},{"name":"Filter","x":450,"gateVal":2,"y":192,"inputCount":2,"mode":"equal to","group":"52441a5a85c71341","behaviorType":"logic.logic.Filter","outputCount":2,"id":"52451660b8d8954e"},{"name":"Bundle Output","x":630,"portId":"52441a5a85c71341o0","tag":"1","y":96,"inputCount":1,"group":"52441a5a85c71341","behaviorType":"logic.NodeGroupOutput","outputCount":0,"id":"52448d2ffe01bd48"},{"name":"Bundle Output","x":630,"portId":"52441a5a85c71341o1","tag":"2","y":192,"inputCount":1,"group":"52441a5a85c71341","behaviorType":"logic.NodeGroupOutput","outputCount":0,"id":"52449bb3593bfc4a"},{"name":"Filter","x":450,"gateVal":4,"y":384,"inputCount":2,"mode":"equal to","group":"52441a5a85c71341","behaviorType":"logic.logic.Filter","outputCount":2,"id":"52452c752c46a448"},{"name":"Filter","x":450,"gateVal":6,"y":576,"inputCount":2,"mode":"equal to","group":"52441a5a85c71341","behaviorType":"logic.logic.Filter","outputCount":2,"id":"5245529314c9864d"},{"name":"Bundle Output","x":630,"portId":"52441a5a85c71341o3","tag":"4","y":384,"inputCount":1,"group":"52441a5a85c71341","behaviorType":"logic.NodeGroupOutput","outputCount":0,"id":"5244b312e2cfeb4b"},{"name":"Filter","x":450,"gateVal":1,"y":96,"inputCount":2,"mode":"equal to","group":"52441a5a85c71341","behaviorType":"logic.logic.Filter","outputCount":2,"id":"5244fa4f28dcbf40"},{"name":"Filter","x":450,"gateVal":5,"y":480,"inputCount":2,"mode":"equal to","group":"52441a5a85c71341","behaviorType":"logic.logic.Filter","outputCount":2,"id":"52453a257df86942"},{"name":"Filter","x":450,"gateVal":3,"y":288,"inputCount":2,"mode":"equal to","group":"52441a5a85c71341","behaviorType":"logic.logic.Filter","outputCount":2,"id":"5245213116c4b040"},{"name":"Bundle Output","x":630,"portId":"52441a5a85c71341o4","tag":"5","y":480,"inputCount":1,"group":"52441a5a85c71341","behaviorType":"logic.NodeGroupOutput","outputCount":0,"id":"5244d37c5d1d6949"}],"links":[{"input_id":"5244fa4f28dcbf40i0","output_id":"52446873fd519845o0"},{"input_id":"52449bb3593bfc4ai0","output_id":"52451660b8d8954eo0"},{"input_id":"5245213116c4b040i0","output_id":"52451660b8d8954eo1"},{"input_id":"5244b312e2cfeb4bi0","output_id":"52452c752c46a448o0"},{"input_id":"52453a257df86942i0","output_id":"52452c752c46a448o1"},{"input_id":"5244e14317187d47i0","output_id":"5245529314c9864do0"},{"input_id":"52448d2ffe01bd48i0","output_id":"5244fa4f28dcbf40o0"},{"input_id":"52451660b8d8954ei0","output_id":"5244fa4f28dcbf40o1"},{"input_id":"5244d37c5d1d6949i0","output_id":"52453a257df86942o0"},{"input_id":"5245529314c9864di0","output_id":"52453a257df86942o1"},{"input_id":"5244a84edf007647i0","output_id":"5245213116c4b040o0"},{"input_id":"52452c752c46a448i0","output_id":"5245213116c4b040o1"}],"v":"2"}}
Does that give you what you need?