Thank you, first, ps_x is my writing mistake,sorry. When right mouse click i`ve got the background with buttons,super:) But i lost mouse poiter so now i am unable to highlite or click on buttons. I use A5_template_project in my test.wdl. When "uninclude" player_selection.wdl line, in test.wdl , i get mouse pointer back. What to do next?