To select

Do the following

A block of text

Drag the cursor over the block.

A line

Move the cursor to the left of the line until it changes to a right-pointing arrow, and then click.

A set of lines

Move the cursor to the left of the first line until it changes to a right-pointing arrow, and then drag to the end of the selection.

The entire source code

Move the cursor to the left of a line until it changes to a right-pointing arrow, and then hold down Ctrl and click.

To select

Press

The entire source code

Ctrl + A

One line up

Shift + Up Arrow

One line down

Shift + Down Arrow

One character to the left of the cursor

Shift + Left Arrow

One character to the right of the cursor

Shift + Right Arrow

One screen up from the cursor position

Shift + Page Up

One screen down from the cursor position

Shift + Page Down

To the beginning of the current line

Shift + Home

To the end of the current line

Shift + End

To the beginning of the current paragraph

Shift + Ctrl+ Up Arrow

To the end of the current paragraph

Shift + Ctrl + Down Arrow

To the beginning of the current word

Shift + Ctrl + Left Arrow

To the end of the current word

Shift + Ctrl + Right Arrow

To the beginning of the visible area

Shift + Ctrl + Page Up

To the end of the visible area

Shift + Ctrl + Page Down

To the beginning of the entire source code

Shift + Ctrl + Home

To the end of the entire source code

Shift + Ctrl + End

Function

Procedure

Cut

Select the relevant text.
Choose Cut from the context menu (right mouse button), or choose Ctrl + X. The selected text is placed in the buffer.

Copy

Select the relevant text.
Choose Copy from the context menu (right-hand mouse button), or choose Ctrl + C. The selected text is placed in the buffer.

Paste

Position the cursor where you want to insert the text.
Choose Paste from the context menu (right-hand mouse button), or choose Ctrl + V. The selected text is placed in the buffer.

Move text using drag and drop (within the same editor)

Select the relevant text.
Press and hold the left-hand mouse button and drag the selected text to where you want to place it.
Release the mouse button.
The selected text is moved to the new position.

Copy text using drag and drop (within the same editor)

Select the relevant text.
Hold down Ctrl + the left mouse button and drag the selected text to where you want to place it.
Release the mouse button.
The selected text is copied to the new position.

Comment out source code

Select the relevant code.
From the context menu, choose Comment, or press Ctrl + <.

Remove comments from source code

Select the relevant code.
From the context menu, choose Uncomment or press Ctrl + >.