To edit text you have already entered, make sure the T button in the Object Type palette is selected and the pencil tool is selected in the toolbar. Click the left mouse button on the text you want to edit. The text box with the text editing cursor will appear, allowing you to edit the text. You can also edit text by clicking the right mouse button on the text with the arrow tool selected.
You select the font for the text you are editing by selecting Text Font from the Character menu and choosing a font.
You change the size and shape of the text box you are editing by dragging one of the edges of the box. The cursor changes shape when you are in position to drag one of the edges.
You move the box by dragging the box with the right mouse button.
When you have finished editing your text, click the left mouse button outside the text box.