@bjrmatos Thanks for your explanation. I hope you understood, why I used the "Nested table" term for this layout?
If you can show me the example to render another table within the table cell with the condition then it will work for me.

Note: The screenshot uploaded above was rendered using jsreport itself without using the dynamic columns feature. I am just facing an issue with the condition. If you can provide me an example to render a table within the cell or merged cell, then it will be great for me.

I need output like the screenshot attached. The inner table should be conditional. I.e. If an order has items then only it should be displayed, otherwise not.
I hope you understand now.

@bjrmatos Inside the table row in want to show child rows. E.g. If Suppose, I want to show the order list. A single order may have multiple items. In the parent row, I want to show basic order details and in a child row, I would like to show the list of items in that respective order.
Also, Let me know, how can I use the IF condition? If the order has the items then only I would like to show items in child rows otherwise not.

I hope you understand the scenario.

Let me know if you need more information.

How can we display the nested table in Docx template? It should display the parent row and its child rows.