The mabl Trainer now supports bulk edit actions in version 2.11.0. Hovering over a step will display a checkbox allowing you to select the step and others. Once steps are selected you'll see new actions appear in the lower toolbar allowing you to delete the selected steps. If you need to select a range of steps simply check the first one and, while holding the Shift key, check the last step to select the entire range. Keep a lookout for more bulk edit actions coming soon.