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

Question

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

Sye · Answer

You may create Load Combinations and as part of that, you may combine the generated load cases with appropriate combination factors. For example to combine the first generated case from each of the 3 moving load generations you may create a combination as shown below 
 
 LOAD COMB 200 
 2 1.1 36 1.2 70 1.3 
 
 Here I have used a LOAD COMB 200 and combined the generated cases 2, 36 and 70 with some arbitrary combination factors. 
 
 You would need to use the editor to type in these commands.