Small 'Notes' field/block in the Opportunity and Activity Details Assignment block

Hi ,

In the CRM WebUI (CRM 7.0) , the 'Notes' field/block in the Opportunity and Activity Details Assignment block just allow for 5 lines to be displayed , you can scroll down and up , but it seems not be user friendly . Do SAP or somebody find a technique in order to have a  'Notes' field/block with more lines ? Like a pop-up ? Or other solution.

Thank you .