Да, в 10 нельзя, а вот в 10.1 можно, если база SDE версии 10.0 и выше обновить.
New functionality for topologies
In ArcGIS 10.1, you can alter versioned topologies without having to unversion the feature dataset.
In
previous releases of ArcGIS, you had to unversion a feature dataset
before you could make any changes to a topology or its rules. Beginning
with ArcGIS 10.1, you can make the following changes to a topology
without having to unregister it:
- Change the cluster tolerance.
- Add a feature class to or remove one from the topology.
- Add or remove a topology rule.
- Change the rank of a feature class.
With the exception of removing a topology rule, which simply removes
all errors and exceptions related to the rule, performing any of these
changes results in a dirty area and the topology must be revalidated.
Also at 10.1, a new geoprocessing tool—Export Topology Errors—is
available that allows you to export a topology's error and exception
information to three feature classes, one for each supported geometry
type of
topology errors. You can grant access to the three feature classes to
users who don't have access to the topology itself, allowing them to
view the topology error information.
The Export Topology Errors tool can be found in the Topology toolset of the Data Management toolbox.
http://resources.arcgis.com/ru/help/main/10.1/index.html#/What_s_new_for_geodatabases/016w00000031000000/
