How to Cut or remove a part from a measurement log?

Hi
Can anyone give an idea that how can we eliminate undesired patches from a DT log in Nemo Analyzer??
i.e. Need to remove only some drive test parts from a log file.

You must edit the log file with a text editor, i.e. Ultraedit, (also can be notepad or word) there you can remove any range you wish, in the begining of each line you can see the time of each data. Be careful when you remove a middle part of log, you colud have issues when you plot the route in a map, it's better when you remove start o end part.
BR