[Amovida]

I am an Omnioutliner neophyte and want to know the following. Can I set up several individual columns in a single Outliner document that will remain independent from one another. I have a series of lists and I would like to be able to open one document and have each list in a column that I could expand, collapse and add (hopefully this is right?) child and grandchildren to. I would like to be able to edit, collapse one list (or one column) without affecting the lists to either side. Is this possible...or must it be done in rows. Hope my question is clear. Thanks in advance! Sean