Actually, I think I figured it out. I think I was misreading the manual. I didn't realize I needed an empty key at the end for spamming one key.
I do have a question about macros assigned to already-bound keys. With the case in Splatoon 2 of brushes and squeezers, if I bind the macro to left click, which is already bound as back right trigger (shoot main weapon), then if I want the macro to spam the trigger while holding left click, will my normal keybind mess with the bound macro (as in, despite the macro spamming the trigger, the game doesn't recognize it because the keybind says the trigger is held)?
Also, how would I go about making a macro that uses two keys at specific times? For Splatoon 2, I want a keybind for rollers that, when I use right click (not bound currently), I jump automatically, and fire the trigger after enough frames have passed for the game consider me to be in the air. I always have a nightmare of a time trying to do a vertical flick, since I always do it too early or too late, and I end up doing a horizontal flick instead, which is life or death in some cases. All rollers oneshot when any flick lands directly (not the sides of it), so the wrong type of flick can and will ruin me.
To answer your first question of how I'd do all these things with a controller in hand, it depends on the weapon. Brushes you spam the trigger to swing back and forth rapidly, but hold the trigger to brush a path as you move. Squeezers fire long range, accurate, powerful shots with rapid taps of the trigger, but fire far faster but with far less range, power and accuracy when the trigger is held. Rollers act like brushes when the trigger is held, but vastly wider, and when tapping the trigger, you flick the roller horizontally for a very strong, close range attack in front of you, or tap the trigger after jumping to swing vertically for the same attack, but in a medium-range line rather than a close-range wave. I'm wanting macros made that allow the rapid-tap functions bound to primary fire to free up my focus, or in the rollers case, automate the jump attack so I never accidentally flick the wrong way.
If you already knew all of this about SP2, my apologies. Just want to be clear so there's no misinformation or misinterpretation.
Huge thanks in advance! ^^