Hi Peter,
I usually zoom out and use 50%/75% - usually that is enought for me to keep track on the flow. In addition, maybe you should breakdown some of the WRs to different rules that is would probably make it easier to maintain - this is only if you don't need those actions to be sequential. The checkbox of "Allow Triggering Additional WRs" is also a best practice that can help you with that.
Please let me know if it makes sense.
Thanks,
Tamir