Problem:

How to add the manufacturer information, instead of inputting every time by free typing.

Solution:

You can add the Manufacturer from the Menu- 

• Setup >> Shipments >> Name and Addresses.

Below is the screenshot:

Click on the arrow that shows Consignee(Default), it will give you a list to select Manufacturer.

Below is the screenshot:

 
Once the Manufacturer is selected, you can add the information and click on Save to save it.

Below is the screenshot: