simple alarm funcion for cars without a formal alarm system?

In some tweaks guide I saw a list of settings (to be made with OBDEleven, VCDS, etc) to enable an alarm of sorts on cars without a formal alarm system.

It's supposed to enable a simple alarm, using the turn signals and the horn, if the driver's door handle is pulled from the inside with the car not having been unlocked by the key fob.

I made the configuration changes with OBDEleven and then tested it by leaving the driver's window down, stepping out of the car and pressing the lock button on the key fob, waiting a minute, and then reaching in and opening the door from the inside.

(This is on my 2020 Octavia Scout, one of the last of the MkIII Octavias). While the car will continuously flash both turn signals (until I turn off the "alarm" by pressing the unlock button on the key fob), and the customizations did include options to enable audio signaling (see below), the horn does not sound; just the turn signal lights flash continuously.

I do know that the car is able to sound the horn in relation to some of these settings, because I also configured and tested sounding the horn upon unlocking or locking the doors and that worked. (And then I immediately turned that back off after the successful test and seeing that having that configuration on still didn't enable the horn sounding with the 'alarm', because honking the horn on unlock/lock is a really annoying feature...)

Any ideas on a setting maybe that is needed in addition, or if some cars simply cannot sound the horn along with the built-in simple 'alarm' functionality?

Below is the configuration guide that I followed; apologies that some of it is in Spanish.

Thanks,

-Jay