I want to render a simple bidirectional grid with a sub_row_grid using render_table

Because sub_row_grid takes up a column the rows cannot render properly

Is there a solution to this that I’m unaware of?

SubGrid can contain any structure.
Component provides JS events which allow customizing the created sub-grid in any way, please check … event.html

Each subgrid can have its own data source URL. It allows to share a single parametrized connector or have a separate render_table command for each sub-grid.