Hi all, Unfortunately it appears that the new-look check box controls are wrongly defaulting to ticking the first item rather than following the defaults given. This is a recent regression which I noticed on updating our production Galaxy to the 15.03 release which included a number of visual style updates to the parameter widgets: https://trello.com/c/8alIlOUN/2590-param-type-select-display-checkboxes-mult... e.g. this example from the BLAST+ wrappers should default to all the checkboxes being checked (ticked): <param name="std_cols" type="select" multiple="true" display="checkboxes" label="Standard columns"> <option selected="true" value="qseqid">qseqid = Query Seq-id (ID of your sequence)</option> <option selected="true" value="sseqid">sseqid = Subject Seq-id (ID of the database hit)</option> <option selected="true" value="pident">pident = Percentage of identical matches</option> <option selected="true" value="length">length = Alignment length</option> <option selected="true" value="mismatch">mismatch = Number of mismatches</option> <option selected="true" value="gapopen">gapopen = Number of gap openings</option> <option selected="true" value="qstart">qstart = Start of alignment in query</option> <option selected="true" value="qend">qend = End of alignment in query</option> <option selected="true" value="sstart">sstart = Start of alignment in subject (database hit)</option> <option selected="true" value="send">send = End of alignment in subject (database hit)</option> <option selected="true" value="evalue">evalue = Expectation value (E-value)</option> <option selected="true" value="bitscore">bitscore = Bit score</option> </param> Thus far I've only noticed this where multiple="true" since for single select parameters I've normally opted for the radio-select button instead. Does anyone use multiple="false" (default) with display="checkboxes"? Peter