Understanding the Relationship Between Button Names and REQUEST .. The Application Express engine considers branching at different times during page. Use this page to build buttons for use in your reports. Simply specify a column as a Link and then enter the following properties for Link Text and Link Attributes. Oracle Application Express Application Builder User's Guide. open .. Creating Buttons. This section describes how to add button to your application.
how to create different types of Dynamic Actions on a page in your application using Oracle Application Express Creating a Dynamic Action on a Button. I use Font Awesome in APEX 4.x too, but I had to create a new button template and put the name of the icon in the class section. This is now all. Maybe an Apex manual? This one is "Application Express Application Builder User's Guide". aparicioarquitectura.com
Create a branch with Type - Page or URL after processing with the "run report button" as server side condition and specify the modal page as target page.