Reseting or Relocating on the online mode

Thanks for your good job.

I'm working on an online tracking task, and I found that the model has abilities to reset or relocate the tracking points automatically while objects reappear on the video. How can I do this 'reset' or 'relocate' manually? Because the reset or relocate was not always 'correctly' tracking on the correct object or position, so I want to add a trigger for manual reseting while no need to re-select the tracking points.