How to set the scroll bar position?

[#1]

I have a 1000 rows table with scroll bar. How to set the scroll bar position by user input?

For example, when user input 100 in a input box, the table automaticly scroll to the 100 row instead of dragging scroll bary manually.

[#2]

My Qlikview version is 9.0.

I want to scroll to certain row aotumaticly when 1st displayed table.