CRM 2011 Personal Options allow a CRM user to tailor CRM to their specific needs. One common request is to control how many records you get every time to see a grid in CRM. The lower the number of records, the faster and more manageable it is (CRM defaults to only showing 50). Best practice would be to use filtering, searching and custom views to avoid having to scroll through a list of 200 records to find the one you want. However, there are times, especially when doing bulk operations you want to work with more at once.
File then Options then Set the records show per page , here you have the option to increase the row count to 250.