Via the FTree interface it is possible to:
- modify the existing tree structure
- access and modify the tree selection through the FTreeSelectionManager
- access existing FTreeNodes
With the FTreeNodeAdapterRegistry it is possible to register FTreeNodeAdapterProviders,
FTreeNodeAdapters and FTreeNodeObjectProviders for all the FTrees or for individual
ones.
The FTreeProvider service provides access to existing or new FTrees and to
the FTreeNodeAdapterRegistry with wich FTreeNodeAdapters are to be registered.