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

This is a signature puzzle named 'Felix'

The 5 elements in each group of this type of puzzle are: F, E, L, I, and X.

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

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

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

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

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

Each pentomino is a group numbered as shown in this Felix figure.

In a Felix puzzle, each pentomino is a group numbered as shown in the figure above.