[Luc]

There appears to be a rope-like device on the emergency equipment training board (8th picture), with some bicone shapes.

Anyone know what that is?

Perhaps an escape rope for the pilots?

EDIT: Yup, here it is in action: https://www.jetphotos.com/photo/7389569

[chinathrow]

Yes, that looks like an escape rope for pilots.

https://www.aviation-gadgets.com/photo/virgin-australia-boei...

[KatiMichel]

I am glad you found that. Someone asked our guide, and I missed the explanation!