This technique uses the one finger technique for Hotel Moonside's simple cross and applies it to Tulip M+.

For moonside you would need to make 3 motions to register one cross, however to hit any number of crosses N, you only need 2N+1 motions, hence the full pattern requires you to make 7 motions total.

As the number of motions is spread out over a longer time compared to moonside's one finger, this makes this technique easier to pick up and use practically compared to moonside.