about "send user command to debuger"

[guorke]

Hi, all
      I'm strange why when i executed one command in "send user command to debuger" window ,the window disappeared immediately. 
if one want to execute some command like 'p sth','p sth','whatis sth', he must
open "send user command to debuger" again and again,   so i hoped we can control
the window, if i didnot want the window display, i can hit 'close window' button,
otherwise, it displayed always. 

Thanks.