Toggle option for Hot Keys (in 10.5.0)

[msnead]

For a sound cue that should continue on forever (a phone ring, for example) that happens frequently enough that it doesn't make sense to add into the cue list, it would be nice if you could add the option to have the Hot Key cue be a "toggle" on or off. So, when the phone is supposed to ring, you would hit "R" (or whatever key is assigned) and the looped file would play forever until you hit "R" again and then it would stop. This will prevent the screw ups associated with the actor missing a cue, taking too long or not picking the phone up at the correct time.