How to import 3D Models from ArcGIS Online

How to log in an ArcGIS Online account in the Tygron Client Application:

Click on the Community tab and click on Sign in with ArcGIS
In the new panel that pops up, choose Default ArcGIS Online and click on Continue to login
Fill in your username and password
Upon success, a confirmation message appears and the panel closes automatically.
To add private or organizational data, see the instructions below.

How to import 3D Models from ArcGIS Online:

Select Current Situation in the ribbon bar.
Open the Geo Data Wizard and click next on the introduction step.
Select the Buildings option in the Select Type step.
Choose the Catalogue service option in the Import Method step.
Choose the Select Catalogue service option with ArcGIS Online selected. (also to access the Enterprise portal data).
In the Select Service step, click on the search option to browse through your Esri content , Esri organization content and Esri open data, available for this Project map.
In order to import 3D models, make sure to select a source of type Scene Service.
In the Import from Layer step, features are obtained automatically. Optionally adjust the selected layer and click next to import the data from an other layer.
In case features were obtained, continue to the Update or replace step.
Select the third option named Update only the 3D Model of existing Buildings.
Finalize the wizard.

Notes

If your organization uses a Custom ArcGIS Enterprise Portal, select that option in the ArcGIS Login panel. An additional access token is required for the Tygron Platform to communicate with ArcGIS. Such a token ^[1] can be created using ArcGIS Portal for your Enterprise.
Choosing another option in the 'Update or replace' step requires additional configuration of the buildings' function and owner. The surface shape of imported buildings is derived from their 3D Model.
In ArcGIS Online, 3D Models are generally imported from Scene Layers.