Close-Buttons
When this style is set, close buttons are shown over each tab. When the user clicks them, the corresponding tab is removed.
If either the Accordion style or the Allow-Container style is set, the runtime automatically removes the controls in the closed page, otherwise it’s the program's duty to perform this removal. In all cases, the MSG-CLOSE event is generated.
 
Example - Define a tab-control with closeable tabs
screen section.
...
  03 screen-1-tc-1 Tab-Control
     line 2.8
     column 25.7
     size 34.6 cells 
     lines 28.9 
     id 10
     close-buttons
     .