You can modify nested attributes for a configuration object using scripting and the wsadmin tool.
Using Jacl:
set techsamp [$AdminConfig getid /DataSource:TechSamp/] set pool [$AdminConfig showAttribute $techsamp connectionPool] $AdminConfig modify $pool {{reapTime 2003}}
techsamp=AdminConfig.getid('/DataSource:TechSamp/') pool=AdminConfig.showAttribute(techsamp,'connectionPool') AdminConfig.modify(pool,'[[reapTime 2003]]')