Protip: Ableton doesn't let you set min/max for Macro ranges in Racks when you assign them to a discrete parameter (like a Delay time for example)
You can go around this by encapsulating the Delay in a Rack first, group this in a second Rack, then assign the Macro of the child rack to the Macro of the parent rack. That way you can set a min/max how you like it!