This allows for independent, modular changes to all components. With Altium ®, each component element is revisioned independently to form a unique, unified component. Even the most basic component requires a symbol and footprint to be used in a design. Every component is composed of several independent elements of design data.

The beginning of every design requires a part list to determine what component data needs to be incorporated into your design environment. You shouldn’t have to worry about data integrity while you are designing. For example, while you are focusing on circuitry logic, you have to ensure data integrity for your components: symbols, footprint, and supply chain. It doesn’t help that you have to juggle different tasks simultaneously. The work required to change your layout grows exponentially the later you are in the design process. Worst of all, you’ll have to identify everywhere a bad component has been utilized across several designs. If one bad footprint makes its way through manufacturing, the rest of your design can be invalidated with necessary layout changes. Then be sure to Apply Changes and complete the ECO process.Components are the basic building blocks of designs and even the slightest discrepancy can derail your whole design process. Press OK and you should be able to modify the 'Description' under the System Parameters sub-column. you want to include system parameters) in the Other Options section: Make sure Exclude System Parameters is not checked (i.e. In the Parameter Editor Options Panel, check only Parts in Include Parameters Owned by section. With a Schlib open navigate the menus to Tools -> Parameter Manager.

Again the official documentation is here:

Option 2: The Parameter Manager tool is another way to do this. That should get you started, and allow you to edit the descriptions like a spreadsheet. Open a SchLib file, then open the SCHLIB List panel and select Edit all objects from all components include only Parts at the top of the SCHLIB panel: Option 1: The SCHLIB List panel is probably a good place to start.

Altium designer component library