Editor have to collapse the row with same property(every element under a Property card) or start word(grid)(like as sub function in computer language).
Yes it is fairly common to see this feature in modern code editors, and it is not that difficult to implement it. The problem is that Nastran bulk data is not well structured like blocks of code are. Relying on an automatic grouping approach may not give the desired results, and allowing users to customize the grouping makes the implementation much more complex.
That said, it is definitely something that can be considered for a future version.
Please reply to this topic with any relevant comments or suggestions.