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

This is a signature puzzle named 'Reginald'

The 8 elements in each group of this type of puzzle are: R, E, G, I, N, A, L, and D.

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

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

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

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

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

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

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