Print out a copy of Manual. Doc before you start and refer to it along with your rough menu maps as you work. If the program can be run directly from anywhere on your system, simply add the program name to the next line. Go back to your main menu and get the selection number of the second program and repeat the same procedure. Do this for every program you've placed on the main menu.
Some programs require extra steps.
For example, you may have to change to the sub-directory the program is in for it to run, or remapped function keys must be returned to DOS defaults. Next move to the sub-menus. The procedure is the same. Sub-menu selection is alphabetical rather than numerical. You will notice these batch file routines are refined to squeeze maximum operations into a minimum number of lines.