I'm using a MacBook Pro with no touchscreen. I looked on line to see how to emulate a long press on a MacBook but was not sucessful. However, If I were able to do so, it appears that this is a static execution of the MIDI command. In other words it just sends the command. What I was hoping for is to back up the play time before the event and execute the playback to evaluate the execution time to ensure I have the timing correct for a CC command in the midst of a song. I see a work around by entering the CC command in the Edit Lyric screen and then , Done, open, move down the timeline, press play and evaluate the timing. tap the i, Edit lyric, repeat. Usually my events are not that critical but other times it needs to be within a quarter note. It appears you have two playback engines going on. One with the graphic and the one with the slider because they both work differently.