Button list control
Currently the radio button list control is the only control we can use to dynamically show the available actions in SmartForms. We assign this radio button list control to the input section when we are opening a worklist item. For the users it would be much more intuitive and modern if we could also dynamically create buttons like with the radio button list control. This is unfortunately not possible. It is ok if this will not be added to 4.7 anymore but for K2 Five it would be beneficial.
Thank you for your feedback. We are exploring a way to include new controls easily into SmartForms, which may address your request. Stay tuned for more information, and we'll update the status of this request as projects continue.