The Render Options dialog box for multiple regions is both an indicator of consistency of the render options of the regions selected, and a tool to set render options for all selected regions. The presence of a check mark in the check box for an option indicates whether consistent settings exist for that option across all of the selected regions.

For example if the Shading option is selected and set to Flat Shading this means that all the regions selected have their Shading options set to Flat Shading. By contrast, if Face Color is cleared this indicates that at least one region has a different color. You can still apply a color to all regions by enabling the check box next to Face Color and selecting a color. After any changes, CFX-Pre will recheck all objects for consistency, and update the form accordingly. The options themselves are the same as for individual regions.