The sounds made by the two patches are similar, but I expect the Preset has some additional FX included.

You can enter the Patch Data via the Event List and indeed Midi Files obtained from the Internet will include them so. However, it is better in Sequencers to use the programs internal features to this end - using the Classic Tracks Window and entering the Patch program number and LSB codes there will allow you to change and indentify Patches much more easily.