90-Minute Cycle Lines

This indicator plots a series of 90-minute cycle markers aligned to specific EST timestamps throughout the trading day. At each defined time (e.g., 2:30 AM, 4:00 AM, etc.), it draws a dashed vertical line with a corresponding label (e.g., "LD1", "NY1") positioned at the same fixed price level, forming a scroll-proof horizontal timeline across the chart. The lines are exactly helping traders visually track recurring intra-day cycles for timing entries, identifying liquidity sweeps, or framing session-based strategies.