Wishlist - KSudoku - New game feature

SUMMARY

Please add option to: "Highlight all of selected number"

Desired behavior:  When a number is selected in any grid square, highlight all instances of that number in the game grid.

Reason:  Without this feature, the player spends all their time looking for other instances of each number.  This results in eye strain and frustration and makes the game work instead of fun.
With this feature the player can concentrate on solving the puzzle, not just endlessly straining to locate matching numbers.

STEPS TO REPRODUCE
1. Click on a number in any square of the sudoku game grid.

OBSERVED RESULT
Other instances of the selected number are not highlighted.  The player must search all squares for matches.

EXPECTED RESULT
All other instances of the selected number are highlighted.  The player can easily see all matches.

SOFTWARE/OS VERSIONS
Linux: 


ADDITIONAL INFORMATION