открыть для просмотра(сделать видимым: A window can display a data object, such as a document or a bitmap, that is larger than the window's client area. When provided with a scroll bar, the user can scroll a data object in the client area to bring into view the portions of the object that extend beyond the borders of the window.Alex_Odeychuk)
выполнять по шагам(To execute the current statement and enter Break mode, stepping into the next procedure whenever a call for another procedure is reached)