Adds a k-out-of-n block shape that represents a group of n identical components that are connected in parallel. At least k of the n components must be functional for the block to remain functional.

Adds a standby block shape that represents a group of n identical components that are connected in parallel. Only k components are active, or performing work in the system. The remaining inactive components act as standby components that are activated when any of the k active components fail. The block must have at least k functional and activated components for the block to remain functional.

Adds a stress sharing block shape that represents n identical components that are connected in parallel. Components fail one at a time, and remaining components fail at a quicker rate. The block must have at least one functional component and the block must successfully reallocate stress across remaining components for the block to remain functional.