Pointing to a Different Component in the App Descriptor

You can redefine an entire page, for example, an application-specific details page which can be specified in the app descriptor file manifest.json.

Sample Code manifest.json

.sap.poc.ftu.apps.fin.breakout - manifest.json excerpt:
"sap.ui.generic.app": { 
	"pages": [{ 
	   "entitySet": "SalesOrder", 
	   "component": { 
	       "name" : "sap.suite.ui.generic.template.ListReport", <--- the original Smart Template ListReport "list" : true
	    }, 
	   "pages": [{ 
	   "entitySet": "SalesOrder", 
	   "component": {
	        "name" : "sap.poc.ftu.apps.fin.breakout.s2" <--- an sFIN specific detail page 
	        },