Hi Manuel! Thanks a lot for all the advices - now it works! Great- If i may propose: I couldn't find any information on the functions you used in the developer-doc's so i think it would be nice to mention in the documentation that: - alignedReadStore's beginPos/endPos return gap space coordinates - document the undocumented functions contigGaps() and positionGapToSeq() - point out the differences if contig sequences are not available... Thanks again for the excellent support! All the best! Mat |