It's possible, but could take some effort to achieve a pivot table through GQI where the indices are the columns. It would require for you to create your own custom ad hoc data source.

What's easy to accomplish though is to have the indices as rows, grouped by element. Here's a quick example of a pivot-like table created through GQI and the regular table visualization:

As you can see, using the regular table comes with a lot of benefits out of the box (filtering, grouping, sorting on multiple columns, resizing + moving colums, copying cells or rows, multi row selection, ...)

You can even customize how every cell should appear. Instead of OK you could for example have a checkmark:

Would this suffice for your use case?