Hello @Hololens.Scalian ,
Below is the response from the Product Team. I hope this helps with your query.
We don’t support any offline scenarios today in ASA.
For relocalization and alignment using QR codes might be one option.
To comunícate the devices, we can use some p2p tech, which we don’t have anything today showcasing this.
Additionally,
There is an import/export anchors API on the HoloLens that will enable customers to achieve this scenario by exporting data from one device and importing it into the other.
This might be a starting point:
HoloLens Anchor Sharing
Anchor Sharing is a system for saving a World Anchor on one device in such a way that it can be loaded onto different devices.
Please let us know if you need further help in this matter,
Please accept helpful responses as 'Answer', which will be helpful to others as well with similar question.