See "Attachments Editor" for an illustration of the editor and descriptions of its elements.
Choose Attachments from the Editors menu in the App Builder primary window to display the Attachments Editor.
Choose the object type you want to attach to its parent or siblings.
Select the object that you want to attach.
Select an attachment type.
If you choose an icon with one small square you are making an attachment from a child object to its parent. If you choose an icon with two small squares you are making a sibling attachment. See "Attachments Editor" for descriptions of the types of attachments.
When you make an attachment, the selected object--the object in the center of the four Attach To boxes--is the controlling object. That is, this object can be moved without affecting its parent or sibling. The offset value or percentage value will change to reflect the changed relationship between the two objects.
On the other hand, if you move the other object--the object to which the selected object is attached--the selected object will move so as to maintain its relationship with the other object.
You may have to click Reset after moving an object in the interface before the change is noted in the Attachments Editor.
Click OK or Apply to apply the changes.