ForexTester has an open interface to add user indicators (API). You can read about it on our forum: topic about indicators
At current moment there are more than 30 most popular indicators are included to Forex Tester:

• AC (Accelerator Oscillator)
• AMA (Adaptive Moving Average)
• ADX (Average Directional Movement Index)
• Alligator
• ATR (Average True Range)
• Awesome Oscillator
• Bears Power
• Bollinger Bands
• Bulls Power
• CCI (Commodity Channel Index)
• Envelopes
• FATL
• Fractals
• FTLM-STLM
• Ichimoku Kinko Hyo
• Keltner Channel (original)
• Linear Regression Channel
• MACD (Moving Average Convergence Divergence)
• MA Crossover Signals
• Momentum
• Moving Average (Simple, Exponential, Weighted, Smoothed) with shift option
• OBV (On Balance Volume)
• PCCI
• PFE (Polarized Fractal Efficiency)
• Pivot Points
• Price Channel
• Price Daily Range
• ROC (Rate of Change)
• RSI (Relative Strength Index)
• Stochastic Oscillator
• Range Expansion Index
• Ultimate Oscillator
• W%R (Williams' Percent Range)

Indicators can be added on different timeframes independently, so every timeframe can have its own set of indicators.

We are constantly working on increasing number of indicators in our program.