I want to add a column to the table in the window that was previously opened as custom. From right click context menu=> Custom Objects => Fields => New but there is no connection to any LU. I think LU is not opened for this tablo.  To create new LU I opened Solution Manager=> System Information And Utilities =>Logikal Units=> Logikal Unit window. But the new LU button is not active? Is there any documantation for opening new LU. ?

Thanx.