To Create a Cell

Note:

If no cell library is attached, attach one before continuing.
Draw the contents of the cell on the desired levels.

Do one of the following:

With the Element Selection tool, select all the elements to be included in the cell.

or
Place a fence that contains all elements to be included in the cell.
Select the Define Cell Origin tool (Drawing > Annotate > Cells > More split button).
The prompt in the status bar is "Define origin." The cell origin is the point that is used to position the cell in a design. When a cell is placed in a design, the cell origin will lie on the data point entered to position it.
Enter a data point to define the cell origin.
The origin stays active and displays until the next time the Define Cell Origin tool is selected.
Select Drawing > Annotate > Cells dialog launcher.
The Cell Library dialog opens.
Do one of the following:

From the toolbar of the Cell Library dialog, click the Create icon .

or
Right-click the cell and select New from the pop-up menu.

The Create Cell dialog opens.
In the Name field, type a name.
(Optional) In the Description field, type a description.
From the list box, select the Cell type.
Click the Create button.
Note: Alternatively, you can define the cell origin (steps 2–3) before selecting or fencing the elements (step 1) to be included in the cell.

Note: One or more cells can be made part of another cell, or nested. Just select the cells to be nested when you create the new cell. If a cell with the same name as the nested cell exists in the library, the nested cell is replaced by a reference to the cell in the cell library. When the cell is placed, the reference is expanded back to the original geometry.