Sometimes it may be hard to remember the transaction code and the navigation info. The easiest way to find this...
out is the table TSTCT. Go to transaction SE16, enter the table name as TSTCT and enter some relevent text to help the search and execute.
Example: You would like to know the transaction for maintaining a logical system. Enter the Text as *logical* and click on execute, you will get the information you're looking for.