Thanks for the reply. We regularly use the +/- option in GSTA to provide quick summaries of species in groups as the classifications are being evaluated. To create these were have returned to DOS PATN, using the LF95 version. This has led to further issues with transferring the files between versions, the archives read into v3.02 well, however there is more work preparing the v3.02 data files in a format to read in via DATN. A version which includes attribute constancy and fidelity would be very useful.