Mark-Up Notes Tool

Screenshot
This is a version 14.0 screenshot

Mark-Up Notes Tool:

This tool is turned on and off with the Mark-Up Notes button in the toolstrip. The tool opens a panel on the right side of the SuDoku Solver where up to seven sets of mark-up notes can be created when in Solve mode.
Each set consists of the note itself plus a number of coloured-in Grid Squares.
Each set has its own colour.
To create a Mark-Up Note, follow these steps:
1. Check one of the colored boxes to select the set.
2. Enter the text of the note.
3. Use the mouse and the 'M' key to select and de-select which Grid Squares to colour in.
Any number of sets can be viewed at the same time, but only select one set when editing.