The most common way to navigate through text is to use use the mouse or the keyboard's cursor keys.

Using the mouse

You can move the insertion point within a document by clicking the mouse inside the editor window.

Using the keyboard

The keystrokes most commonly used to navigate through a document are:

Keystroke Description
Up Move the insertion point up one line
Down Move the insertion point down one line
Left Move the insertion point left one character
Right Move the insertion point right one character
Home Move the insertion point to the first non-whitespace character on the line — pressing Home a second time moves the insertion point to the leftmost column
End Move the insertion point to the end of the line
PageUp Move the insertion point up one page
PageDown Move the insertion point down one page
Ctrl+Home Move the insertion point to the start of the document
Ctrl+End Move the insertion point to the end of the document
Ctrl+Left Move the insertion point left one word
Ctrl+Right Move the insertion point right one word

SEGGER Embedded Studio offers additional movement keystrokes, though most users are more comfortable using repeated simple keystrokes to accomplish the same thing:

Keystroke Description
Alt+Up Move the insertion point up five lines
Alt+Down Move the insertion point down five lines
Alt+Home Move the insertion point to the top of the window
Alt+End Move the insertion point to the bottom of the window
Ctrl+Up Scroll the document up one line in the window without moving the insertion point
Ctrl+Down Scroll the document down one line in the window without moving the insertion point

If you are editing source code, the are source-related keystrokes too:

Keystroke Description
Ctrl+PgUp Move the insertion point backwards to the previous function or method.
Ctrl+PgDn Move the insertion point forwards to the next function or method.