property SplitBar.ObjectsRB as String
Indicates the object to be updated in the right/bottom part of the split bar.

TypeDescription
String A String expression that specifies the name of the controls on the form to be udated by the split bar when it moves, separated by comma character. For instance, "Command1,Command2"
By default, the ObjectsRB property is "", so no associated components to the split bar. This property is provided to define the controls associated with the right/bottom side of the split bar at design mode, but it works if using at runtime as well. The Mode property specifies whether the split bar moves objects horizontally or vertically. When the Mode property is set to exSplitBarHorz, the control resizes any controls that lie above or below it, and when the Mode is set to exSplitBarVert, it resizes controls that lie to its left or right. The AddObjectRB method adds at runtime, a new object to be updated in the right/bottom part of the split bar. The ObjectsLT property defines the objects to be updated on the left/top side of the split bar. Setting the ObjectsRB property on "" ( empty string ), releases any control/object that has been previously anchored to the slit bar, including the objects being added with the AddObjectRB method, or the split bar has nothing attached to its right/bottom side. The LimitRB property specifies the expression that determines the limit to drag the splitter to right/bottom side of its container.

By default, if a control/component/object is contained in 

Currently, the ObjectsRB property can be used in any of the following programming environments:

but it could work on other containers as well.

For instance, let's say we have the following layout:

so we have two split bars ( horizontal and vertical ), and three buttons/commands. One splitter should resizes the left-most button, and the rest, and the vertical split bar show resize the top-most button and the bellow one.

Select the split bar component in design mode and specify the ObjectsLT / ObjectsRB properties as shown bellow: