//================================================== ==============
// FIVE WOW'S ON ONE PC
// by Alcattle
//
// Instructions: Copy this entire script (all the blue writing
// on gray background including comments). Save it in a file.
// Load it into HotkeyNet.
//
// Toggle the scroll lock key to turn hotkeys off and on. (You
// can change this if you want, just like you can change
// everything else with HotkeyNet.)
//
// Requires HotkeyNet build 148 or higher.
//
// For more info, go to www.hotkeynet.com
//================================================== ==============

//-----------------------------------------------------------
// PRESS CTRL R TO RENAME WOW'S IF YOU LAUNCH THEM MANUALLY.
//-----------------------------------------------------------
<Hotkey ScrollLockOn Ctrl R>
<SendPC Local>
<RenameWin "World of Warcraft" WoW1>
<RenameWin "World of Warcraft" WoW2>
<RenameWin "World of Warcraft" WoW3>
<RenameWin "World of Warcraft" WoW4>
<RenameWin "World of Warcraft" WoW5>

//-----------------------------------------------------------
// SUBROUTINE TO LAUNCH AND RENAME A COPY OF WOW.
//-----------------------------------------------------------
<Command LaunchAndRename>
<SendPC %1%>
<Run "c:\Program Files\World of Warcraft\WoW.exe">
<RenameTargetWin %2%>
<wait 1000>
<text %3%>
<Key tab>
<text %4%>
<wait 100>
<Key Enter>

<SetAffinity All>
//-----------------------------------------------------------
// HOTKEY TO LAUNCH AND RENAME YOUR WOW WINDOWS
//-----------------------------------------------------------
<Hotkey ScrollLockOn Alt Ctrl L>
<LaunchAndRename Local WoW1 "toon" "password">
<LaunchAndRename Local WoW2 "toon" "password">
<LaunchAndRename Local WoW3 "toon" "password">
<LaunchAndRename Local WoW4 "toon" "password">
<LaunchAndRename Local WoW5 "toon" "password">

//-----------------------------------------------------------
// SUBROUTINE TO Position Windows for 5 boxing.
//-----------------------------------------------------------
<Command ResizeAndPosition>
<SendPC Local>
<SendWin %1%>
<SetWinRect 0 0 1280 990>
<SendWinM %2%>
<SetWinRect 1280 0 640 512>
<SendWinM %3%>
<SetWinRect 1280 512 640 512>
<SendWinM %4%>
<SetWinRect 1920 0 640 512>
<SendWinM %5%>
<SetWinRect 1920 512 640 512>

//-----------------------------------------------------------
// DEFINE MAIL LABELS FOR SENDING KEY STROKES.
//-----------------------------------------------------------
<Label w1 Local SendWinM WoW1>
<Label w2 Local SendWinM WoW2>
<Label w3 Local SendWinM WoW3>
<Label w4 Local SendWinM WoW4>
<Label w5 Local SendWinM WoW5>

//----------------------------------------------------------------
//Window Switching
//----------------------------------------------------------------
<Hotkey F1>
<ResizeAndPosition WoW1 WoW2 WoW3 WoW4 WoW5>
<SendLabel w1, w2, w3, w4, w5>
<Key %Trigger%>
<Hotkey F2>
<ResizeAndPosition WoW2 WoW1 WoW3 WoW4 WoW5>
<SendLabel w1, w2, w3, w4, w5>
<Key %Trigger%>
<Hotkey F3>
<ResizeAndPosition WoW3 WoW2 WoW1 WoW4 WoW5>
<SendLabel w1, w2, w3, w4, w5>
<Key %Trigger%>
<Hotkey F4>
<ResizeAndPosition WoW4 WoW2 WoW3 WoW1 WoW5>
<SendLabel w1, w2, w3, w4, w5>
<Key %Trigger%>
<Hotkey F5>
<ResizeAndPosition WoW5 WoW2 WoW3 WoW4 WoW1>
<SendLabel w1, w2, w3, w4, w5>
<Key %Trigger%>

//-----------------------------------------------------------
// DEFINE HOTKEYS FOR ALL KEY COMBINATIONS THAT WILL GET
// SENT TO BOTH WOWS. ADD MORE KEY COMBO'S IF YOU WANT.
//-----------------------------------------------------------
<KeyList MyList A-Z, 0-9, F1-F12 except W, A, S, D, Q, E>

<Hotkey ScrollLockOn MyList except F1-F5; ScrollLockOn Alt MyList; ScrollLockOn shift MyList; ScrollLockOn ctrl MyList except r>
<SendLabel w1, w2, w3, w4, w5>
<Key %Trigger%>
//-----------------------------------------------------------
// DEFINE MOVEMENT KEYS THAT WILL GET SENT TO BOTH WOW'S.
// ADD MORE KEYS IF YOU WANT.
//-----------------------------------------------------------
<MovementHotkey ScrollLockOn space, up, down, left, right>
<SendLabel w1, w2, w3, w4, w5>
<Key %Trigger%>

//-----------------------------------------------------------
// BROADCAST MOUSE CLICKS. HOLD DOWN OEM3 (ON U.S. KEYBOARDS,
// THAT'S THE SQUIGGLE KEY IN UPPPER LEFT CORNER) WHEN YOU
// WANT TO BROADCAST.
//-----------------------------------------------------------
<UseKeyAsModifier Oem3>

<Hotkey ScrollLockOn Oem3 LButton, MButton, RButton, Button4, Button5>
<SendLabel w1, w2, w3, w4, w5>
<ClickMouse %TriggerMainKey%>

I use /follow focus, and /assist focus on each /cast macro . I think T for target/assist anf F for follow works and are used by many for that purpose.

what else? oh yes this won't load WoW as I took out names and password, but it is a good start if you need 5 accounts, one PC on 2 monitors