Go to Master > MargSetup > Self format > Select invoice format-98 [DMP]/99[GUI] > Password window will be appear > Feed password as current date in reverse format(yy/mm/dd) >Format window will be appear > Feed format name & then press enter key > Click on Page setting > Click on Next > Search---"SIZE" > Then click on Accept > There is one option shown "Create size heading from Billed Items / Fixed"---Select that option as "F" > Size Sequence window will be appear > User can mention there sequence of size(for eg:-1st-32,2nd-34 etc.) Then press esc key for save.