Learn more here: https://the-Automator.com/Triggers

Using Triggers class.ahk

#Include Triggers.ahk

Triggers.AddHotkey(MyFunction, "Do Something Cool", "^j")      ; Ctrl+J default
Triggers.AddMouse(AnotherFunc, "Quick Action", "!MButton")       ; Alt+MiddleClick default
Triggers.AddHotstring(ExpandText, "Insert Signature", "btw")     ; Hotstring default
Triggers.FinishMenu("My App Preferences", true)

MyFunction(*) {
    MsgBox "It worked!"
}
AnotherFunc(*) {
    MsgBox "Mouse trigger fired!"
}
ExpandText(*) {
    Send "by the way"
}