By default, a maximum of four projects are listed in the recently used file list near the bottom of the File menu. You can increase or decrease this number if you want.
To change the number of files in the recently used file list:
Select Settings
> Program Settings or click the Program Settings button on the
Settings toolbar.
In the Program Settings dialog, select the General tab.
Type the maximum number of files to display in the Recently used file list edit box, or use the arrows to select a number. You can list a maximum of 9 files.