Working in a table cell is the same as working in a text box. You can:
Add and format text. You can apply formats to all selected cells at one time. See Designing with Text.
Embed objects. See Embedding Objects in a Text Box.
Wrap text around objects. See Wrapping Text around Objects.
Modify text box properties. See Working with Text Boxes.
To select the contents of a cell:
Double-click the cell.
Cross-hatching appears around the selected cell. You can edit the text in the cell or change cell properties.