Did you mean parameter as in input field shown to the user? Like a combobox or text field?
Since this happened to come up earlier today, here's a rejected pull request which added a password parameter - that ought to give you a rough idea:
https://github.com/galaxyproject/galaxy/pull/393
Peter
On Fri, Jul 15, 2016 at 7:46 PM, Katherine Beaulieu katherine.beaulieu014@gmail.com wrote:
Hi everyone, I am looking to implement a new parameter type for galaxy tool development. Does anyone know what would be involved in doing something like this or perhaps what files would need to be edited?
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