Top-Down Analysis - Multi-Timeframe Alignment

This indicator implements a Top-Down Multi-Timeframe Trading Analysis System. Here's what it does:
Core Functionality
1. Multi-Timeframe Bias Detection

Monitors three timeframes: Daily, 4-Hour, and 1-Hour
Determines if each timeframe is bullish, bearish, or neutral based on two EMAs (9 and 21 period by default)
A timeframe is bullish when: Fast EMA > Slow EMA AND price is above Fast EMA
A timeframe is bearish when: Fast EMA < Slow EMA AND price is below Fast EMA

2. Alignment Tier System

Tier 1 (Full Alignment): All three timeframes agree (Daily = 4H = 1H direction)
Tier 2 (Partial Alignment): Daily and 1H agree, but 4H differs
No Alignment: Timeframes disagree

3. Previous Day Support & Resistance Levels
Automatically plots key levels from the previous day:

Previous Day High (PDH) - resistance
Previous Day Low (PDL) - support
Previous Day Close (PDC)
Previous Day Midpoint (PDM)

4. Execution Zone (15-Minute Window)

Highlights the first 15 minutes after each new 4H candle opens
This is the optimal entry window when alignment conditions are met

5. Pattern Recognition
Detects trading setups:

Double tops/bottoms
Long wicks at support/resistance
Bullish/bearish closes aligned with bias

6. Trade Signals
Generates entry signals when:

There's Tier 1 or Tier 2 alignment
Price is in the 15-minute execution zone
A valid pattern forms (double top/bottom or wick rejection)

7. Visual Dashboard
Shows a real-time table with:

Each timeframe's current bias
Alignment status
Next 4H prediction
Whether price is at a key support/resistance level

Trading Strategy
The indicator helps traders follow the principle of "trade with the higher timeframe trend" by only taking trades when multiple timeframes agree, focusing entries during specific windows, and respecting previous day's key price levels as potential reaction zones.