2-3-4 Outside Sudoku (Daily Sudoku League #9)

This 2-3-4 Outside Sudoku is my 9th contribution to The League of Extraordinary Ladies & Gentlemen. Can you solve this 2-3-4 Outside Sudoku puzzle?
I would also like to thank Prasanna Seshadri for testing all my puzzles created for the daily Sudoku League and suggesting names for this Sudoku Variation.

2-3-4 Outside Sudoku Instructions

Place a digit from 1 to 9 in each empty cell so that each digit appears exactly once in each row, column, and outlined region.  The numbers outside the grid appear in the second, third, or fourth cells of the corresponding row or column when viewed in that direction.

2-3-4 Outside Sudoku (Daily Sudoku League #9)

2-3-4 Outside Sudoku (Daily Sudoku League #9) Solution

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Solution of "Descriptive Pairs Sudoku"

Descriptive Pairs Sudoku Solution