Compact 1x1 loaders that use electricity. They are able to use separate filters on each belt lane, and can stack items on belts if stack inserters are available.
Split lanes is the idea of having different items on each side of a belt. Opening the loader you can click the split lanes checkbox to configure the loader to output items on separate sides of the bus.
Thank you for the quick response. Now, I see the checkbox that I missed before. Now, if only the Belt Sorter mod would be updated, this would be the total package.