Love the game but not the options

I love this version of Sudoku, the look of it and ease of use is great, but there are some options I would really have liked to see that are not included. It would help if all of the uses of the number were highlighted throughout the puzzle when you select a number. This is done in other Sudokus and is a big help to me in solving the puzzles. It would also help if there was a way to check if you have made a mistake or not. Again, this is an option in other versions of Sudoku.
To conclude, this is a beautiful product but it is missing some key points that would, if they had been included, make me give it the full 5 stars. As it is, I can only give it 3 stars.

etismetoo about Sudoku Deluxe, v1.0