Record a conventional ¹H spectrum. Note the o1 of the selected resonance.

Perform the selective excitation on this selected proton resonance using a selective 270 degree pulse.

a Selective 1D TOCSY spectrum with rpar SELMLZF1H all (the pulse program selmlzf

A minimum  thirty-two scan cycle is needed (ns=32 and ds=4).

l4 is the number of delays in the vd-list (z-filter). An example should be:
 
                            0.004s
                            0.016s
                            0.010s
                            0.006s
                            0.004s
                            0.010s
                            0.017s
                            0.011s
                            0.018s
                            0.012s