November 2020 product updates

• Check out the updates to the operations list in IBM Quantum Composer, including the new control modifier!

Drag the control modifier to a gate to add a control to it, or use the contextual (right-click) menu to add or remove controls.

• Building circuits in Quantum Composer just got faster and easier!

We've added standard controls such as multi-select, copy, and paste. You can also group multiple gates to create a custom unitary operation that functions as a single gate.