Help: Use BTT to trigger 'Talk to Siri'?

I'm trying to initiate 'Talk to Siri' with BTT. I think being able to initiate 'Talk to Siri' and/or macOS dictation via scripts, automation, etc. would be a nice addition to integrate with other existing scripts and automations.

I've seen that there's an action for 'Start Siri' but that triggers 'Type to Siri'.

You can use the keyboard to initiate 'Talk to Siri' by pressing and holding the Dictate key (F5), or both the FN/Globe and F5 keys depending on if you have the top row of keys set to control media/system functions, or Function Keys (F1, F2, F3…).

I'm wondering if it's possible to achieve this via a workaround, by getting BTT to press and hold the Dictate key for 2 seconds?

If you have your keyboard set to control media/system functions then pressing the F5 key (for example via AppleScript) wouldn't work, it needs to replicate pressing the top row system Dictate key. Or maybe it's possible to replicate pressing and holding the FN/Globe and F5 keys together at the same time?

same.. Really looking for "talk to siri" instead of "type to siri" by default.

please help anybody.