If I press "CRTL+CMD+A" when building a macro the "Search For An Action Bar" appears. Is there an action for this as I would like to clear the search bar (i.e., remove the previous search) noting I looked but could not find such an action.
Well, yes, you can automate if you want by making a Macro that is only active in Keyboard Maestro. By giving it the original hotkey it will override the default behaviour.