Retrieve external variables?

[Clerin]

When you attach an EA to a chart or start a backtest/optimization, then the list of external variables for that EA gets printed to the terminal experts tab or strategy tester journal tab (respectively) under the entry title of "inputs".

Does anyone know if it is possible to retrieve this list using a command *inside* the EA? (Without otherwise having to painstakingly query each external variable, one-by-one).