There is an Apple wireless keyboard that also acts as a dock and supports the home key and Spotlight functions. I don't believe that there is any way to do this from the regular wireless keyboard.
Here are some things that the Apple Wireless Keyboard can do that I found somewhere (two sources):
iOS Keyboard Shortcuts:
Here we provide the iPad Tips: iPad Keyboard Shortcuts with Bluetooth Keyboard
Command + Z: Undo
Command + Shift + Z: Redo
Command + C : Copy Selected Text
Command + V : Paste
Command + X: Cut Selected Text
F1: Dim screen
F2: Brighten screen
F7: Back one song
F8: Play/pause song
F9: Skip song
F10: Mute
F11: Decrease volume
F12: Increase volume
Eject button: Show or hide onscreen keyboard
Command + Delete: Delete everything to the left of the cursor on the current line
Option + Delete: Delete the word to the left of the cursor
Command + Up Arrow: Go to top of document
Command + Down Arrow: Go to bottom of document
Command + Left Arrow: Go to beginning of current line
Command + Right Arrow: Go to end of current line
Option + Right Arrow: Go to the beginning of the next word.
Option + Left Arrow: Go to the beginning of the previous word.
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Apple Wireless Keyboard
eject - toggle showing / hiding virtual keyboard (this key is at top
right)
tab - move to next text field (e.g. in mail)
shift tab - move to previous text field
command z - undo
shift command z - redo
command x - cut
command c - copy
command v - paste
command a - select all
control - stops and restarts VoiceOver speaking (e.g., in the middle
of a two finger flick up or down to read all)
command space - change to next language keyboard (when you have more
than one selected)
shift command space - change to previous language keyboard
General movement and selection commands with command, option, and
arrow key combinations. (For these sequences, holding down the shift
key will select as well as move your cursor. On a PC keyboard, the
control key can be substituted for some, but not all instances of the
command key. On some keyboards, the Windows key may replace the
function of the command key.)
left / right arrows - move left or right by character
shift left / right arrows - select left or right by character
option left / right arrows - move left or right by word
shift option left / right arrows - select left or right by word
command left / right arrows - move to beginning or end of line
shift command left / right arrows - select to beginning or end of line
up / down arrows - move up or down by line
shift up / down arrows - select up or down by line
command up arrow - move to start of document (page up on PC keyboard)
shift command up arrow - select to start of document
command down arrow - move to end of document (page down on PC keyboard)
shift command down arrow - select to end of document
delete - delete backward by character
option delete - delete backward by word
(forward delete sequences with the Fn key do not work)
some emacs-like control key sequences work:
control a - move to beginning of line
control e - move to end of line
control b - move back a character
control f - move forward a character
control h - backwards delete a character
control k - delete to end of line
control m - insert line feed (blank line)
Selections are slightly tricky, because they are based on your current
insertion point, so if you select a few words forward by holding down
the shift key and tapping the option key, then press command up arrow
to move to the start of the document without releasing the shift key,
you will end up reversing the selection of the words you started with,
and selecting all of your document from your starting point to the
beginning of the document. Similarly, when you arrow down from the
middle of a line and hold down the shift key, you select all
characters from where you started to where you move to in the middle
of the next line. On a Mac you can check your selections while you
work, but here you can't.