I usually set up toggles like this:

a) Main spam mapped key, that calls the other pieces via 'Do Mapped Key' actions (with Target: Current Window).
b) Several other pieces, each their own mapped key (with Target: Whatever)
(Only want one thing deciding the target, either the calling mapped key or the called piece).

So you could have a priority or a two-step or whatever.
Each as their own 'B' step, called from the main spam key.
You could include IWT, if you want.

If you sometimes want Lightning Bolt, but not always.
Make that a mapped key, with whatever parameters you want.
You could have step 1, not advance to the next step for 7 seconds and then step 2 to not advance for 1.5 seconds (or the reverse)... with the keybind for Lightning Bolt, on the step that you want it to fire off on.
Check the box, to not load the mapped key initially.

Then create a toggle key.
It will need a hotkey, and should be two steps.
Keymap Actions > New Mapped Key State Action.
Do the opposite action on the second step.
I often include a Pop Up Text Action, to let me know the current 'Mode'.

Toggle it on, when you want.
And off, when you don't want it.
You can really go crazy, and turn stuff on and other stuff off on alternating steps.
Step 1: Enable A, Disable B.
Step 2: Enable B, Disable A.
Etc..