Hi there,
Do you want the textbox to consist of scrollbars? Since then you don't have to add them, you can then dis-/enable them in the property page of the rtb. (named Scrollbars and you can set it to both, horizontal, vertical, force horizontal etc.)
Otherwise you can add multiple controls to a usercontrol or add them to a panel.
Here you can add the VScrollBar. Now you can dock it to the right (as default in most programs) and handle the scroll event (with e.newvalue and e.oldvalue in the event arguments you can determine how far you want your controls moved) You can then adjust the location property of the controls contained within the panel or usercontrol.
~ DP