Killzone_Tidypips is a trading indicator designed to visually mark key trading sessions on price charts. It displays the open and close times for the Asian, London, New York, and London Close sessions, helping traders identify high-activity periods and session overlaps. Users can customize session times, toggle visibility, and adjust the appearance of session lines, including color, style, and thickness. The indicator supports time zone adjustments via a GMT/UTC offset parameter to align with local or broker server time. An interactive feature allows users to select specific time ranges on the chart by dragging a rectangle while holding the ALT key, dynamically marking session lines within the selected range. The interface offers simplified parameter inputs for intuitive configuration without clutter. Once set up, vertical lines representing session opens and closes are drawn directly on the chart, serving as visual markers for trading analysis.