The editor has two text-input modes:

• Insertion mode:  As you type on the keyboard, text is entered at the insertion point and any text to the right of the insertion point is shifted along. A visual indication of insertion mode is that the cursor is a flashing line.
• Overstrike mode:  As you type on the keyboard, text at the insertion point is replaced with your typing. A visual indication of insertion mode is that the cursor is a flashing block.

Insert and overstrike modes are common to all editors: if one editor is in insert mode, all editors are in insert mode. To configure the cursor appearance, choose Tools > Options.

To toggle between insertion and overstrike mode:

• Click Insert.

When overstrike mode is enabled, the mode indicator changes from INS to OVR and the cursor will change to the overstrike cursor.

To add or insert text:

1. Move the insertion point to the place text is to be inserted.
2. Enter the text using the keyboard.

To overwrite characters in an existing line, press the Insert key to place the editor into overstrike mode.

To add or insert text on multiple lines:

1. Hold down the Alt key and use block selection to mark the place text is to be inserted.
2. Enter the text using the keyboard.