We need to see runtime error messages instead of blank lines. We need to see an error message from the BB engine when it can't load a chunk of javascript because of a syntax error (e.g. unmatch { or ( or quote. We need to see the ENTIRE log window, not just a 28 character skinny-log. We need a filter feature on the trace window to show lines that contain specific characters/strings We need a SAVE button that instantly stores the entire trace to disk (desktop, downloads, where ever) We need a PAUSE button on the preview window to pause/resume execution. Clear is good. Thanks for clear. It helps. Thanks @DanFarfan