The Graph Paper Tool could have more features, such as having an interactive grid. The user can change the grid after the object is constructed.
Increasing or decreasing the number of rows and columns in the Property Bar or through a Docker.
For example: in the image a 10x10 Grid was created. Still selected, this Grid would be changed to 5x5 (or any other value) and the object would change automatically.
In addition to activating a feature that would also allow you to interactively change the position of the Grid lines. As in the example in the image.
I believe it is a very interesting option for the daily workflow for everyone who uses CorelDRAW.