IN DRAFSIGT THE COMMAND WINDOW HAS DISAPPEARED IT APPEARS STEALTHILY BY PRESSING F2 BUT DISAPPEARS AS SOON AS YOU TYPE A COMMAND

Hello

To show/hide it, the keyboard shortcut is ctrl+9. You can also right-click in the toolbar and select "Command Window".

thank you dbz 

I know this shortcut, but the command window appears checked when clicking on the toolbar.

I found the solution by tinkering with the Window settings of the screen display