I want to customize the tophat and related interfaces to allow more than one fastq file per fwd/rev set as is allowed and very helpful in the CLI version: $ tophat -o output -p 8 -r 125 -G annotation.gtf myBowtieIndex run1_fwd.fastq,run2_fwd.fastq run1_rev.fastq,run2_rev.fastq Is there a way to select multiple items from a dropdown menu or can/should i convert that part of the interface to a text input field so I can simply feed the command a list of files like on the command line? This last method seems like it might be a little unsafe though. But even if its not, it divorces the file management from the history which seems like its not a good idea. Has anyone done this? Thanks, Gus -- In science, "fact" can only mean "confirmed to such a degree that it would be perverse to withhold provisional assent." I suppose that apples might start to rise tomorrow, but the possibility does not merit equal time in physics classrooms. *-Stephen Jay Gould*