Expt.txt file is inside profile folder. It is useful for simple scripts that need to be run periodically. It is executed on every screen refresh. Each line is single expression statement.

Here is an example of Expr.txt with two expressions (two lines). First line checks if controller is connected. If it is not then "_concheck" parameter in increased and status line is updated. Second line checks if "_concheck" parameter is greater then 100. It it is then command "Reconnect" is executed, status is cleared and parameter is set to zero.

To test this example put Expr.txt file to profile folder and restart TNGv2. Unplug USB cable from controller and observe status line. Then plug USB back to controller and controller will be reconnected then parameter counts to 100.