Detailed instructions for working a group puzzle of type 'Octavius'

This is a signature puzzle named 'Octavius'

The 8 elements in each group of this type of puzzle are: O, C, T, A, V, I, U, and S.

Every group in the puzzle must contain exactly this set of elements.

Each row is a group numbered as shown in this Octavius figure.

In a Octavius puzzle, each row is a group numbered as shown in the figure above.

Each column is a group numbered as shown in this Octavius figure.

In a Octavius puzzle, each column is a group numbered as shown in the figure above.

Each 4x2 rectangle is a group numbered as shown in this Octavius figure.

In a Octavius puzzle, each 4x2 rectangle is a group numbered as shown in the figure above.