Sometimes you get to learn how to fill in some holes yourself
Ualaa doesn't tell you which Key Map to put it in because a Key Map is just a collection of Mapped Keys and technically you can make your own, or you can put it in an existing one made by the wizard. There are pros and cons to doing either --
if you make your own Key Map for example it will not be toggled by the default Key Maps toggle unless you add it, and if you put it in "FTL DPS Keys" it will be used by every Character Set you keep in this particular ISBoxer profile (you can keep multiples when it would help, and Export the one you need at the time).
If you're going to set this up in FTL DPS Keys, just modify the DPS 1 Mapped Key that is already there.
So here's how to do that:
1. In the top left pane, under Key Maps, select FTL DPS Keys
2. In the bottom left pane, under Mapped Keys, select DPS 1. You can expand it too while you're at it, so under it you see Steps, 1.
3. With DPS 1 selected in the bottom left pane, look in the bottom right pane for the "Execute a Step when the Hotkey is ____" drop-down box, and set it to "pressed OR released". This is because we're adding a second Step, and we want the first step to happen when we press the button, and the second step to happen when we release the button.
4. Right click on "Steps" and select "New Step". There is now 2 steps and it will behave as described in 3.
5. In the bottom left pane, select Step 1. (the 1 under Steps, under DPS 1)
6. At this point you want to look in the bottom right pane and add Actions to the Step(s) to match the abilities Ualaa detailed. Assist is already part of DPS 1. The next part of DPS 1 is 1->all. You can drop that and add new
Keystroke Actions that activate whatever abilities you need in each step. Ualaa suggests separate Mapped Keys for each of Mind Freeze, Howling Blast, etc, using
Do Mapped Key Actions instead. (To go that route, make sure your individual Mapped Keys do that ability to Window:Current, i.e. Howling Blast mapped key sends to self, and then the Do Mapped Key Action is used to send Howling Blast to additional windows). He suggests this method because if you just add a bunch of Keystroke Actions, they will get merged together -- so if you have 2 Keystroke Actions, Alt+1 followed by Shift+F4, and they go to the same window, that window is going to get Alt+1+Shift+F4, and could potentially trigger Alt+F4. By moving those keys into their own Mapped Key, and using Do Mapped Key Action, they will not be combined and the window would get instead Alt+1, and then Shift+F4.
To add a new Action, just right click Actions and find the type of Action from the list. Each kind of Action has different fields to fill out, for example Keystrokes you tell it where to send a keystroke, and what keystroke to send. To delete an Action, right click it in the list and select Delete. You can re-order the actions from the right click menu as well, or hold Alt and press Up/Down to move them more quickly.
Hope this points you in the right direction