On the left hand side of the layers menu, you have access to the full list of components within your object. These are sorted into groups of parents and children, and have their name taken directly from the model.
You can access the children within each parent by pressing on the dropdown arrow beside each name. If a component has no children, there won't be an arrow to press.
You can also reorder the list using the dropdown menu at the top of the page. Here, you can keep the standard order taken from the model, or choose to have the list in alphabetical or reverse alphabetical order.
In the future, there's consideration to enable users to reorganise the imported tree into their own format, including rename each component. If this sounds of interest to you, leave some feedback on our roadmap!