Looking at the _shared/form view, it should be possible to pass through an array of <button> elements. However, when I do, I get the following JS error that is triggered by the form validation:
Uncaught ReferenceError: $button is not defined
EE.cp.formValidation._toggleErrorForFields @ admin.php?S=0&D=cp&C=javascript&M=combo_load&ui=core,widget,mouse,position,sortable,dialog,button&p…:2084
EE.cp.formValidation._sendAjaxRequest @ admin.php?S=0&D=cp&C=javascript&M=combo_load&ui=core,widget,mouse,position,sortable,dialog,button&p…:2057
(anonymous function) @ admin.php?S=0&D=cp&C=javascript&M=combo_load&ui=core,widget,mouse,position,sortable,dialog,button&p…:1993
Z.event.dispatch @ jquery.js?v=1443175002:3
Z.event.add.m.handle @ jquery.js?v=1443175002:3Packet Tide owns and develops ExpressionEngine. © Packet Tide, All Rights Reserved.