The Last property returns a text range (or TextRange object) containing the last character in a collection.
Examples:
The following VBA example creates paragraph text and then fills its last character red.
Sub Test()
Dim t As Text
Dim s As Shape
Dim d As Document
Set d = CreateDocument
Set s = d.ActiveLayer.CreateParagraphText(2, 2, 8, 8, _
"This is a test.")
Set t = s.Text
t.Story.Characters.Last.Fill.UniformColor.RGBAssign 155, 0, 0
End Sub