The Order Entry menu options can be changed to suit your tastes. The actual placement or inclusion of menu options is not critical within the menu. The minimal set of options required by Order Entry are:
Mark Shipped Packing Slips
Bill Shipped Orders
This is the minimum set of menu options that still allows Order Entry to operate properly.
You can freely change the prompts of the menu options. Doing so does require changing the Order Entry menu Help file, but this is not a difficult task. You can also change the parameter prompts of reports, but you should be careful about removing prompts. Also, adding report prompts without changing the report to use the new values has no effect on the report output.