Wareva,
I dont know what it is you are trying to modify in your existing model....
You could generate an input file from the DB using
*cfopen,inputfile,inp
alls
nnn=ndnext(0)
*dowhile,nnn
*vwrite,nnn,nx(nnn),ny(nnn),nx(nnn)
('n,',F5.5,',',F10.10,',',F10.10,',',F10.10)
!check your fortran format
nnn=ndnext(nnn)
*enddo
!(make similar loop for elements and nodal loads...)
*cfclose