The slider along the bottom is used to inspect the layers of the print.

Save the gcode file by clicking on the button on the lower left "Export Build File to Disk"

The model is now ready to print.

Note: The view of the multi-color print can be changed by selecting the "coloring" drop down located on the left side near the middle. The software only allows automatic coloring.

Remember if changes are made to the "Process Settings, save them by clicking "Update Profile" by the Profile Name.