You can change the number of files listed in the "Recent Files" 1 to 30. Under the Edit Menu select Preferences then select the number of files to view. There is a option for Favorite files. The openning window you can click manage favorite or under the file menu, select Open Favorite the manage favorite. You can delete all recent files visited. Click open Recent Files under the file menu then select clear recent.
Thank you for your reply. I will work with your suggestions.