Android Question B4XTable MaximumRowsPerPage and how do I center a checkbox

Sub Globals
    Private B4XTable1 As B4XTable
    Private CheckedColumn As B4XTableColumn
End Sub

Sub Activity_Create(FirstTime As Boolean)
    Activity.LoadLayout("1")
    CheckedColumn = B4XTable1.AddColumn("Checked", B4XTable1.COLUMN_TYPE_VOID)
    CheckedColumn.Width = 80dip
    B4XTable1.AddColumn("Entry", B4XTable1.COLUMN_TYPE_NUMBERS)
    B4XTable1.MaximumRowsPerPage = 50
    B4XTable1.BuildLayoutsCache(B4XTable1.MaximumRowsPerPage)
    B4XTable1.RowHeight = 50dip
    Dim data As List
    data.Initialize
    For i = 1 To 100
        data.Add(Array(i))
    Next
    Wait For (B4XTable1.SetData(data)) Complete (Unused As Boolean)
    For i = 1 To CheckedColumn.CellsLayouts.Size - 1
        Dim p As B4XView = CheckedColumn.CellsLayouts.Get(i)
        Dim chk As CheckBox
        chk.Initialize("chk")
        p.AddView(chk, p.Width / 2 - 20dip, B4XTable1.RowHeight / 2 - 20dip, 40dip, 40dip)
    Next
End Sub