You can include HTML code from version 4.96 so in 5.0 it is. I even use this method quite often and it works very cool.
How insert HTML w body ABMaterial:
Dim source As String = File.ReadString(File.DirApp&"/help", m.Get("help"))
'source is code HTML
Dim e As ABMLabel
e.Initialize(page, "help", "aaa",ABM.SIZE_A, False,"")
e.TextAsRAWHTML = source
page.Cell(1,3).AddComponent(e)