Global Kb::Kb (QObject *parent, const QString &path): Is adding notify2 to the notifypaths neccessary?
Global Kb::~Kb (): I don't think, that notifypaths is used somewhere. So why do we have it? If we do not need it, searching for an ununsed notify channel can easy be refactored to a private member function.
Global RebindWidget::applyChanges (const QStringList &keys, bool doUnbind): There is still a bug in the state machine: If you record a macro in asTyped-mode, switch to another mode and change the vontent of the pteMacroBox manually, then the changes are not saved in the timing buffer. But anyhow, let's do more relevant things...
Global RebindWidget::on_btnClearMacro_clicked (): I do not know what is the better solution with the delay-buttons in case of clicking clear: Reset the button to the default value or do not touch it? Not clear is ignored.