- RESULT - giving up. I have no idea what .mclt files are, how to customize them, how to make them, or where to get them.
I was using ManyCam and wanted to edit a lower third to fix the font and otherwise tweak it.
There is the ability to select a new one, but I found no replacement .mclt file on manycam.
Trying to figure this out took such a long time I needed to spin off a new page.