After adding a section view in drafting and editing the Crosshatch by selecting the Crosshatch and using MB3 --> Edit, the options for Crosshatch Definition and Pattern are grayed out.
This will occur if the toggle button for "Process Hidden Crosshatch" is toggled ON. To toggle the option off, select the View Boundary --> MB3 --> Settings --> Section --> Settings.
The Crosshatch dialog will now display with Pattern and Crosshatch Definition available to edit.