Why 0FIGL_O14 have only 65 InfoObjects & no Cube for 0FI_GL_14

Hi

DataSource 0FI_GL_14 has 184 fields and DSO 0FIGL_O14 has only 65 InfoObjects and no InfoCube. Why?

1) I need 100 fields of 0FI_GL_14 which option is suitable?

     a) Add required 35 Z InfoObjects  in Std. DSO 0FIGL_O14.

     b) Add required 35 Z InfoObjects in created Z DSO. e.g. ZFIGL_O14.

2) There is no InfoCube for 0FI_GL_14 and I need to create 6 reports on it so I need to create InfoCube?

because cube is superior then DSO for reporting.

Thanks