The "Enable ERAM Preload" option for MAX® 10 devices can be located in the Device options in the Quartus® II software version 14.1 and later.
In the Quartus II software, go to Assignments -> Device -> Device and Pin Options -> Configuration -> Configuration Mode to choose from the following options :
1.Dual Compressed Images
2.Single Uncompressed Image
3.Single Uncompressed Image with ERAM Preload
4.Single Compressed Image with ERAM Preload
5.Single Compressed Image
Options 3 or 4 enable the ERAM Preload feature.