Dear Mamacint,
thanks for your answer, so if I correctly interpreted the code, with reference with load cases below, I need to create settlement case by L16-L18 (EXP) that means only settlement vector that in my case is D9 and then calculate by hand the stress ratio (I have CII ver. 5.3).

Legend: D1, D2=cyclic thermal displ.; D3= snubber disp.; D9= noncyclic displacements

L1=W+H HGR
L2=W+D1+T1+P1+H HGR
L3=WW+HP+H HYD
L4=W+D1+T1+P1+H OPE
L5=W+D2+T2+P2+H OPE
L6=W+D1+D9+T1+P1+H OPE
L7=W+D2+D9+T2+P2+H OPE
L8=W+D2+D3+D9+T2+P2+H+WIN1 OPE
L9=W+D2+D3+D9+T2+P2+H+WIN2 OPE
L10=W+D2+D3+D9+T2+P2+H+U1 OPE
L11=W+D2+D3+D9+T2+P2+H-U1 OPE
L12=W+D2+D3+D9+T2+P2+H+U2 OPE
L13=W+D2+D3+D9+T2+P2+H-U2 OPE
L14=W+D2+D3+D9+T2+P2+H+U3 OPE
L15=W+D2+D3+D9+T2+P2+H-U3 OPE
L16=W+D9+P1+H OPE
L17=W+D9+P2+H OPE
L18=W+P1+H SUS
L19=W+P2+H SUS
L20=L4-L16 EXP
L21=L5-L17 EXP
L22=L16-L18 EXP for eval. of stress due to non cyclic movements
L23=L17-L19 EXP for eval. of stress due to non cyclic movements
L24=L8-L7 OCC
L25=L9-L7 OCC
L26=L10-L7 OCC
L27=L11-L7 OCC
L28=L12-L7 OCC
L29=L13-L7 OCC
L30=L14-L7 OCC
L31=L15-L7 OCC
L32=L24+L19 OCC
L33=L25+L19 OCC
L34=L26+L19 OCC
L35=L27+L19 OCC
L36=L28+L19 OCC
L37=L29+L19 OCC
L38=L30+L19 OCC
L39=L31+L19 OCC

Is it the correct way?
Thanks in advance
Regards