Looks like you like to implement cusotm action which does the navigation to Object page. .Check https://sapui5.hana.ondemand.com/sdk/#/topic/993e99eae4414b73bc7afef9518c79bfhttps://sapui5.hana.ondemand.com/sdk/#/topic/7619517a92414e27b71f02094bd08d06...
Yes first you need to define a Route in xs-app.json{"source": "/capapi/(.*)$","target": "$1","authenticationType": "<Auth-Type>","destination": "<Destination in BTP>","csrfProtection": true,"scope": [ ]} use the same in manifest.json "dataSources": ...
If you are referring this navigation in UI then yes , you can Object page in order to show the details of the subnode (Child) . Check this https://learning.sap.com/learning-journeys/getting-started-with-creating-an-sap-fiori-elements-app-based-on-an...
