You have a listing showing all the concordance lines in a window. You can scroll up and down and left or right with the mouse or with the cursor keys.
These show the details for each entry: the entry number, the concordance line, set, tag, word-position (e.g. 1st word in the text is 1), paragraph and sentence position, source text file name, and how far into the file it comes (as a percentage). See below for an explanation of the purple blobs. The statistics are computed automatically based on the language settings.
Other things you may wonder about
Re-sorting your concordance lines
Blanking out the search-word
Padding the search-word with spaces (use the search-word padding menu item to put a space on each side of the search-word)
Collocation (words in the neighbourhood of the search-word)
Plot (plots where the search-word came in the texts)
Clusters (groups of words in your concordance)