In Sirius you could obtain an aspect grid that shows aspects between two charts but a small BiWheel was also included with it, and some customers requested the ability to obtain the aspect grid without the BiWheel. We have added this option to Sirius.
The flexible aspect grid is the new aspect grid that has aspects that can be customized in a way that is similar to customizing the aspects in a chart wheel. The caption for customizing aspect grid on this feature is labeled “Customize Wheel”.