Find the no of columns in the given table, if no of columns in not equal to the required count, then click filter button and change layout of the table.

 

Dim TableColumns

SAPGuiSession("Session").SAPGuiWindow("Access").SAPGuiOKCode("OKCode").Set "me23n"
SAPGuiSession("Session").SAPGuiWindow("Access").SendKey ENTER
TableColumns = SAPGuiSession("Session").SAPGuiWindow("PO").SAPGuiTable("SAP").ColumnCount

If TableColumns < 4  Then
     SAPGuiSession("Session").SAPGuiWindow("PO").SAPGuiTable("SAP").SelectCell 1,"item" 
     SAPGuiSession("Session").SAPGuiWindow("PO").SAPGuiButton("Set filter").Click
     SAPGuiSession("Session").SAPGuiWindow("filter").SAPGuiGrid("GridView").SelectCell 5,"ColumnName"
     SAPGuiSession("Session").SAPGuiWindow("filter").SAPGuiGrid("GridViewCtrl").SelectRow 5
     SAPGuiSession("Session").SAPGuiWindow("filter").SAPGuiButton("Add filter criterion").Click
     SAPGuiSession("Session").SAPGuiWindow("filter").SAPGuiButton("Enter").Click
End If