[galaxy-dev] Customizing the history panel

Hi, I'm looking for ways to customize the history panel that gets added to the workflow history after a step has finished. Below is the standard set of buttons/icons that we normally get: [cid:image001.png@01CCA9D3.2C2EF410] What I would like to do is to either add some extra buttons to it OR extend the functionality of such a button. How can this be done? I only found the page below mentioning there are some extra optional buttons, but it does not tell me how to enable/disable the buttons: http://wiki.g2.bx.psu.edu/Learn/Managing%20Datasets Thanks and regards, Pieter Lukasse.