BonitaSoft Form

Good afternoon. I'm working with BonitaSotf version 7.6.3 and created an initial form in the UI designer to upload a document. Now in that same form besides the button that has the function of initiating process was intended to have another button that when clicking it close the process and return again to the portal to be able to start again to start the process. When I add a button I only have two action types (start process or submit task).

Can someone help me? Patrícia Lopes