You can put several resources on one widget.
In this case, the client will first be shown a list of resources to choose from - directory.
If a lot of resources can be grouped into folders - resource groups.
You can create resource groups from the configuration page:
1. Click Create resource group.
2. Enter a name.
3. Upload an image if required.
4. Click on the resources that will be in the group.
5. Click on the groups that will be attached to the group.
6. Save it.
To create a directory in the widget, open its settings.
Similarly, select resources and nested groups.
Look at the example of the work of the catalog.
Here are the groups with the Open button, and the resources are Book: