Selection.SplitTable Method (Word)
Inserts an empty paragraph above the first row in the selection. .
Required. A variable that represents a Selection object.
If the selection isn't in the first row of the table, the table is split into two tables. If the selection isn't in a table, an error occurs.
If the selection is in a table, this example splits the table.
If Selection.Information(wdWithInTable) = True Then
This example splits the first table in the active document between the first and second rows.