different push over load patters in opensees

[vafaa]

hi
i am a newcomer here
in push over we use different load patterns like uniform distributed load pattern or triangular or first mode load pattern;
in opensees how we can define this load patterns?
for example
is this the uniform one? and can u put the others?
pattern Plain 2 "Linear" {

# Create nodal loads at nodes 3 & 4
# nd FX FY MZ
load 3 $H 0.0 0.0
load 4 $H 0.0 0.0
}

[fmk]

play with the loads being applied to the nodes, say nodes 3 at 4 at different levels

the above you provdided is uniform. the follwoing would be for triangular assuming ndm =3 and a variable Height for building height.

load 3 [expr [nodeCoord 3 2]/$Height] 0.
load 4 [expr [nodeCoord 4 2]/$Height] 0.

and first mode assuming the iegen command has been issued.

load 3 [nodeEigenvector 3 1 1] 0.
load 4 [nodeEigenVector 4 1 1] 0.