Is there a way to add two different moving loads in a combination?

Hello,

I have 3 moving loads. I want to combine type 1 with type 2 and then type 1 with type 3. Is there a way I can do it in one model.

Thanks

STAAD SPACE
START JOB INFORMATION
ENGINEER DATE 09-Apr-19
END JOB INFORMATION
INPUT WIDTH 79
UNIT FEET KIP
JOINT COORDINATES
1 0 0 0; 2 8.05 0 0; 3 16.1 0 0;
MEMBER INCIDENCES
1 1 2; 2 2 3;
DEFINE MATERIAL START
ISOTROPIC STEEL
E 4.176e+006
POISSON 0.3
DENSITY 0.489024
ALPHA 6e-006
DAMP 0.03
TYPE STEEL
STRENGTH FY 5184 FU 8352 RY 1.5 RT 1.2
END DEFINE MATERIAL
MEMBER PROPERTY AMERICAN
1 2 TABLE ST W12X40
CONSTANTS
MATERIAL STEEL ALL
SUPPORTS
1 TO 3 PINNED
DEFINE MOVING LOAD
TYPE 1 LOAD 63 63 63 63
DIST -5 -6 -5
TYPE 2 LOAD 10.851 4.069 4.069 10.851
DIST -5 -6 -5
TYPE 3 LOAD 6.345 2.379 2.379 6.345
DIST -5 -6 -5
LOAD 1 LOADTYPE Dead TITLE DL
MEMBER LOAD
1 2 UNI GY -0.2
LOAD GENERATION 34
TYPE 1 0 0 0 XINC 1
LOAD GENERATION 34
TYPE 2 0 0 0 XINC 1
LOAD GENERATION 34
TYPE 3 0 0 0 XINC 1
PERFORM ANALYSIS
FINISH