Q1: Points to Average a collection of 10 or more?
A1: Set the Mean option on the GNSS menu > Survey panel to 10 or more then you can use averaging to collect point feature/vertex. Among the GPS status data in the bottom right corner of the map view DigiTerra Explorer displays the received/adjusted number of positions.
Q2: Lines or Polylines to a distance interval? 2 meters or 5 meters
A2: Set the Distance option on the GNSS menu > Survey panel to 2 or 5 meters. Distance: enables you to control the data capture with a distance based filter. If the distance between the last captured position and the current position is less than this value DigiTerra Explorer omits the incoming GPS position.
Please also have a look at the Reference Guide in the following topic at http://wiki.digiterra.hu/en/downloads/D ... survey.htm to learn more about the usage of the GNSS Survey panel.