[[FrontPage]] (subcorpus containing first 1000 tokens) =first1000 -CQL- [#0-1000] (Note the "-CQL-" literal which indicates that the next line is a CQL query) You mentioned: [...] - CEFR level : A1, A2, B1, B2 - skills: vocabulary/ grammar/ listening/ reading/ writing/ speaking [...] Looking at a sample of your vertical file: 2 <file CEFR="A1" Title="International English for Speakers of Other Languages"> 3 <text Skills="Reading"> <text> is nested in <file>, hence to get a subcorpus of A1 x Reading combination, use the following: =Reading_A1 -CQL- <text Skills="Reading"/> within <file CEFR="A1"/> It is now also possible to save a concordance as subcorpus (see left hand menu "Save as concordance" in a concordance view) This all works so far only on our beta installation at beta.sketchengine.co.uk, if you want to test, we will be happy for any feedback.