You need a maintenance authorization as these settings have to be made in Customizing for Real Estate.
Contact your system administrator to get maintenance authorization.
Choose Accounting Real estate management Tools Current settings Rent adjustment
Accounting
Real estate management
Tools
Current settings
Rent adjustment
Either
Maintain the representative list of rents (Customizing documentation) by , Maintain Representative List of Rents or
Maintain the representative list of rents (Customizing documentation) by
, Maintain Representative List of Rents or
Create your own calculation basis for the representative list of rents (Customizing documentation) by choosing Edit individual list of rents
Create your own calculation basis for the representative list of rents (Customizing documentation) by choosing
Edit individual list of rents