Hello Alex, Do you mean a default dataset (that a user can modify or never modify) or default form entry data? If default form entry data, then you can use the <param> tag set with "value", as described in this wiki: http://wiki.g2.bx.psu.edu/Admin/Tools/Tool%20Config%20Syntax#A.3Cparam.3E_ta... Looking at existing tools that have default form data can provide good examples. For instance, the tool: galaxy-central / tools / filters / remove_beginning.xml See the content in <param value="X" /> line 5 below 1 <tool id="Remove beginning1" name="Remove beginning"> 2 <description>of a file</description> 3 <command interpreter="perl">remove_beginning.pl $input $num_lines $out_file1</command> 4 <inputs> 5 <param name="num_lines" size="5" type="integer" value="1" label="Remove first" help="lines"/> 6 <param format="txt" name="input" type="data" label="from"/> 7 </inputs> 8 <outputs> 9 <data format="input" name="out_file1" metadata_source="input"/> 10 </outputs> 12 <tests> 13 <test> 14 <param name="num_lines" value="5"/> 15 <param name="input" value="1.bed"/> 16 <output name="out_file1" file="eq-removebeginning.dat"/> 17 </test> 18 </tests> 19 <help> Hopefully this helps. If not, write back, or even better, add in some clarification and post a brand new question/thread to the galaxy-dev@bx.psu.edu mailing list (the best list for development questions): http://wiki.g2.bx.psu.edu/Support#Mailing_Lists Jen Galaxy team On 5/10/12 12:12 PM, alex wrote:

Hi,

Is there a way to specify default data for a tool, maybe inside an xml?

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