This is purely aesthetic but it would be great to have a button to auto format tools positions on the canvas. The idea would be similar to a feature many IDE's come with to auto format code so that the indentation is corrected and duplicate return characters are removed.
We currently have the Align and Distribute capabilities which is great. This could be expanded to the entire workflow so that the canvas could look at which tools connect to which and structure their positioning around that. I think it would be a great clean up feature after finishing a workflow.