Similar to Internet Explorer, an 'x' should be placed on bottom tabs in PC SAS so that the user can easily close a window.
Currently the user must open the window and click on the top 'x', or use the menu /File/Close again when opened, or right click on the tab and select Close | Cntrl+F4.
Placing an 'x' on the tab would be much quicker, especially helpful when viewing many programs or SAS datasets