I had to reinstall VEGAS Pro. I have set everything up as I had it. But I can't add this icon to the (custom) Toolbar because it doesn't appear. I haven't been able to find which Program/Effect/... it belongs to in order to reinstall it.
The problem is that I can't place the icon, since it doesn't appear in the corresponding window from where it is dragged to the Toolbar. The image I have placed corresponds to a previous screenshot, where you can see the icon... This application/plugin/effect... is effective since it allows, among other things, to rejoin sequences that have been divided in the Edit Line.