One possible way to get the Mersey beat is to download a MIDI version of the song that has the beat you want. There are free midi files and others that can be purchased however the purchased ones are generally better. Once you have the MIDI file just use the drum track. You can use it as the MIDI file or convert it to a wav.

Good luck.

Whenever I get something stuck in the back of my throat, I dislodge it by drinking a beer.
It's called the Heineken Maneuver.

64 bit Win 10 Pro, the latest BiaB/RB, Roland Octa-Capture audio interface, a ton of software/hardware