EasyLanguage Symbol Switch Function

I’m working with a Bar chart in TradeStation and need a concise EasyLanguage function that swaps the primary symbol whenever the secondary symbol change price-threshold rule is met.

Scope is intentionally lean:
• Single, well-commented function that accepts user-defined price levels and the replacement symbol.
• Logic detects the threshold in real time and calls SetSymbol or comparable EasyLanguage command to update the chart’s primary symbol instantly.
• Basic input validation and a quick in-code example showing how to trigger the change.

No scheduling or manual toggle is required—just the automated switch based on price. A short test script to prove the concept on a sample symbol pair is all I need.

If you’ve built similar EasyLanguage snippets before, this should be a quick task.