This is an automatic parameter optimizer for the Trend Line PRO indicator: 

You can easily and quickly select the optimal parameters for your favorite Trend Line PRO indicator. Optimization takes only a few seconds.

After the tests, the parameters can be saved to a ready-made set file in the folder: MQL4>Files>TrendLineOptimizedSettings

After that, this set file can be used for the Trend Line PRO indicator

Quick instructions: