Here you can select a working corpus.
All corpora which are installed on your system are shown on the left hand side of the current panel. To activate a corpus, simply click on the little checkbox square next to it; this adds the corpus to your current working set. More information about this corpus and the current working set is displayed in the information boxes on the right.
To deactivate a corpus, simply click the checkbox again. The size of your working corpus will adjust accordingly.
If you want to work with the same set of corpora again, you can save the current selection in a file by clicking on the SAVE button on the toolbar in the top right hand corner; and you can load previously saved corpus selections using the LOAD button next to it.
The SORT button is disabled on this tab, as there is nothing on it that you can sort.