How to change the shift value for 3D volume so that the segmentations within the heart is more visible

When the segmentations are loaded, they are barely visible as they are rather small (see above).
By increasing the ‘Shift’ value in the ‘Rendering Options’, I was able to make it more obvious. How can I set it to this ‘Shift’ value so that it would immediately reflect this ‘Shift’ value on page load?