>Sorry, English is not my firs language...
>If I put ScrollBar to the form and put container higher then 2000 pixels in the form - I can see only the top part of container. I can't scroll form down more then 1509 pixels even if there are objects lover then 1509...

You should manipulate the container's Top property all the time, including the design time - if you want to work with the container's lower part, just set its top=-1800 or something like that. In design time, you do it in property window; at runtime, do it in code (this.top=70-this.activecontrol.top, or something like that).