The Edit menu commands provide simple Editor functions. The selector for the Edit menu is grayed out and inactive unless the active window is an Editor window.
The Edit dropdown menu contains commands which operate on selected text. To select a block of text with a mouse, hold down the left mouse-button as you move the mouse cursor over the block. To select a block of text from the keyboard, hold down the SHIFT key as you move the cursor over the block with the arrow keys. In either case, selected text within the Framework editor is shown in reverse video.