Hi Alex, > 1. You could use the Pilog functions 'pilog' or 'solve' and 'select' > 2. The most efficient way is to use an '+Aux' key. This generates a > combined key in addition to the two indexes for 'usr' and 'doc'.
Thank you for the examples, Tomas -- UNSUBSCRIBE: mailto:picol...@software-lab.de?subject=unsubscribe
