Hello all, I'm looking at 'basic' composite datatypes in Galaxy, based on how Edward did BLAST databases in his BLAST+ fork on the toolshed. I've extended his work to handle both protein and nucleotide databases, and have got this working for tools to create a database (i.e. wrapped makeblastdb) and use a database from the history (e.g. blastp tool). That side of things seems to be working OK. What I am not quite understanding is how to modify the behaviour of these datatypes in the galaxy GUI. Thinks like the peek contents and what happens when clicking on the "eye" icon are not explained here: http://wiki.g2.bx.psu.edu/Admin/Datatypes/Composite%20Datatypes What I have in mind is to show a simple text summary as the peek or 'eye' display view giving the database name and size (perhaps captured when the database is created, or on the fly via the blastdbcmd command). It seems one option would be to use an 'auto_primary_file' composite instead of 'basic'? Then I can use the generate_primary_file method to show some text? Have I overlooked some documentation? Thanks, Peter