For the Repeater Regions, I'm using three addons.
Grid and GridCustomLayouts (for the custom sorting).
And Clique to interpret my clicks.

You can go with Healbot or Vuhdo or Grid + GridCustomLayouts + Clique, whichever option you prefer.

My custom configuration is:
ToonA,ToonB,ToonC,ToonD,ToonE;NAME
1,2,3,4,5;5/5;NAME;NR

The first line listed, corresponds to column one.
I have every toon across all teams (alliance and horde) on this list, currently 37 names.
Each is separated by a comma, there are no spaces.
It ends in semi-colon and name (name is entirely capitalized).

The second line denotes displaying toons from groups 1-5 (1,2,3 would only show toons in groups 1-3).
The 5/5 is (Columns Displayed / Rows per Column).
Again ;NAME, for an alphabetical sort.
NR = No Repeating, which means if a name appears once (in Column One) it won't be repeated anywhere else.

Effectively, all of my toons are listed in Column One, even if they're in different groups.
And the rest of the battleground/raid is listed in columns two through five.




During the configuration of you team, you set up a unique FTL Modifier for each of your toons. The software suggests what to go with, and works fine with the defaults.

The options are Left Alt, Right Alt, Left Ctrl, Right Ctrl, Left Shift and Right Shift. You cannot use both a Left and Right (of the same type) for a given character. This still gets you a ton of unique combinations: LA, LC, LS,
RA, RC, RS, LA LC, LA LS, LC LS, RA RC, RA RS, RC RS, LA LC LS, RA RC RS, LA RC, LA RS, LC RA, LC RS, LS RA, LS RC, RA LC, RA LS, RC LA, RC LS, RS LA, RS LC, etc.

The software has an addon which builds macros for you. When you press "1", it first does an FTL Assist Me command (the addon makes an assist macro, which is pushed), and then all windows receive a "1". The FTL macros will look very much like any other FTL set up, but are done behind the scene.

You are free to use Alt, Ctrl, Shift (or any combination) as the hotkey for a given mapped key, similarly you can use Alt + whatever as the output. The FTL keys don't get in the way of using those modifiers elsewhere.

Most FTL Functions reference one of the functions:
- FTL Target Me
- FTL Assist Me
- FTL Follow Me
The FTL refers to the "other" windows, automatically picking the correct (active) toon.




You can set an unlimited number of mapped keys. Most of mine are to the effect of (Shift D) as the hotkey, and they send (Shift D) to all windows.

If you want Shift D to be an AoE ground target effect, you would check a box for Send Next Click, and then set a target. You can go with the standard type of targeting:
- Window: Current (The Active toon only)
- Window: Others without Current (The Slaves only)
- Window: Others With Current (Essentially all windows)
- By Slot # (the Account)
- All of or Others in your character set (team of characters).
- The toons which have been placed in an Action Target Group.

I like to use ATG's, because I can have my "4" key be set as an AoE key for some of team A, no one in Team B, all of Team C, etc.
Just by adding the toons to the relevant Action Target Group.




Most of the software options on the market can Round-Robin.
With IS Boxer, this is accomplished with Steps.

If you are running a team with four Death Knights plus a Healer, you might want to Round-Robin the Death Grip.

If a mapped key has one Step, then the same thing happens every time it is activated.
If it has two steps, then Step 1 is activated first and Step 2 the second time, after which it goes back to Step 1.

With four toons who can Death Grip, you'd give the mapped key four steps.
On each step, you'd send your wow keybind to whatever character or slot you wished.

You can also set multi-step mapped keys to reset to the first step after 'x' seconds from either the first press or the most recent press.




Because IS Boxer renders every window at the same resolution, your system will lag a little compared to almost any other boxing software.
I get 60 FPS (which is what I have it capped at) on my main window, and 20 FPS on the slave windows (again what I've capped it at).

I have five regions, which are 1080x1650 each. Roughly 1.8 million pixels per region or close to 9 million pixels rendered.
With Keyclone, I used my full 1600x2560 monitor. That's roughly 4 million pixels rendered.
Obviously 9 million uses more resources then 4 million.
But I'm happy with my eye candy settings and game performance.

My rendering each instance of the game at full resolution, there is no swap time when you switch which region is active.
It just moves one region into the bigger window and stops scaling it down, and then scales down the previous region and moves it into the smaller window position.

Similarly, with every window rendered at the same resolution, mouse broadcasting is extremely precise.

Game elements will be totally accurate, such as Talent selection, clicking Accept boxes for setting your Hearth Point, or taking the same flight. Anything which depends on view distance, won't be as accurate (such as clicking on a portal), but you can see the mouse on each of the slave screens and position it to click on everyone at once.

You can disable instant swap, which would get you the increased performance of other boxing options, but then you have to go with their less accurate mouse broadcasting.




You could enable mouse broadcasting, possibly on a two step mapped key. Something like a thumb button as the hotkey, or any other key if that works better.

Step 1 enables mouse broadcasting.
Step 2 disables mouse broadcasting.

Then I would execute a step on press or release, meaning while you hold the thumb button down, you are mouse broadcasting, meaning right click held will turn your character the same as when you are one boxing.
As soon as you release the button, your mapped key goes to step 2, which turns off the broadcasting of the mouse.