Hi Team,
I need a help in creating following structure using apex 5.1. I have tried it to achieve in different ways. Kindly help me on this.
I have created a demo app on apex.oracle.com
1. I have three different tables Escalation, Issues and Comments
2. The Flow of the data is 1 Escalation - Many Issues and 1 Issue - Many Comments.
3. I want to develop a custom template in which I can have nested Editable Grids with Collapsible Rows.
4. In the below mock up I should have a single page with 3 different editable collapsible grids.
5. It is similar to nested report but I need All the tables should work like an editable grids.

Kindly help me on this. I don't know how do I achieve this.
Also I have never worked with custom templates and there and integration with oracle apex applications.