"Remove all lines with text occurency smaller than 10 from certain column"

Hi, 

Im trying to refer to a certain column of the sample set and remove all lines smaller than 10. Whats the way to do that? 

e.g. 

Process Documents from Files >> Filter Stopwords >> Tokenize >> Transform Cases >> Stem >> ??? now remove all lines where the clumn "text occurence" is lower than 10 ???