Hi! I am using the submit page dynamic action on a submit button with the "show processing" option which disables the page when the processing occurs. This works great but I now also want to display a confirm dialog before the page is submitted. I can do that by itself by creating a javascript dynamic action on the button calling apex.confirm. But how do I do both? I.e. get a confirm message and the show processing type functionality if the user confirms? If I add both as actions under a dynamic action the page is submitted immediately without waiting for the confirmation. I know prior to 5.1 there was a synchronous dynamic action option that may have worked for this to allow the dynamic actions to execute in sequence, but that option does not seem to be around anymore (I am on 20.2).
The core requirement is to disable the page while the processing is running so certainly open to other ways of accomplishing that.