On the “Multi-Field Formula” tool, the default is to “copy output fields and Add….” I think the default should NOT copy. I’m using this tool to trim all of the blank spaces, and change the case in text fields. I often forget to uncheck it and end up with all these additional fields at the end.
With regard to the tool container, I think the default margin should be small. I build huge workflows, and putting each section in a tool container. I have to go in and change each one to small margins to condense the workspace. Perhaps in the user settings, under document, there could be a default margin option, just as there is a container color option.