I've been watching videos of various games analyzed and folks use some programs that allow them, during explanation, to show where pieces could have been moved or threats - usually with an arrow or similar.
Chessbase is my personal favorite for multimedia annotations. I have a friend who makes YouTube videos on chess (GreenCastle / Matt Pullin) using the chessbase interface and swears by it.
I've been watching videos of various games analyzed and folks use some programs that allow them, during explanation, to show where pieces could have been moved or threats - usually with an arrow or similar.
What programs allow that?
Frank