The Configure Toolbar

This toolbar allows access to some of the more commonly used options on the 'Configure' menu;

Layer Stack

This icon will run the 'Layer Stack Editor'.  From here you can also configure impedance for single trace and differential pair routing.

Attributes

This icon will run the 'Attribute Editor'.

Spacings

This icon will run the 'Spacing Rules' dialog.

The 'Configure' icon has also been added to the 'Create / Edit Shape', 'Routing' and 'Fan-Out' toolbars.