For webConsole, add the following flag to <BASEDIR>/CONSOLE/smarts/tomcat/webapps/webconsole/webconsole.properties where tomcat server is running.
com.smarts.maxTopoInstances=XXXX where XXXX is the maximum number of instances you would like to be able to browse.
restart the webConsole for the change to take affect.
The user should note that this option will consume more memory by both the console and server processes and should be used only if necessary. It is recommended that the "Find Instance" option be used to locate specific instances inside an object class where feasible.