As I already said: I was wrong to some degree. There is advantages but mostly disadvantages to LCM. You might end up setting just as many keyframes as with singleframes depending on the scene.
Pictures show the same scene but with two different Masks (0 and 1) used for different states of the scene. The whole scene contains 23 frames triggered by one keyframe. The scene is highly dynamic as
the boulder value changes and the amount of shots for boulder bash. Could I have done it with even just one mask inside the LCM? No, because there is frames with no fonts at all, just animation, then first the boulder value which is increased by hits on the bumpers and then the amount of remaining shots for boulder bash, which actually will show up once the bumpers haven't been activated for a specific amount of time.
1 keyframe to trigger the LCM
lcm contains 28 frames
triggering the 28 frames uses only 2 masks out of ten available for LCM scenes.
SO why do I say that LCM's are not advisable?
For one, they need a keyframe to be triggered, that's not a problem but if you need to trigger a specific frame, you will have to set another keyframe for that aswell.
In the case of man over board, that's a huge problem. The scene contains 94 frames. Now if the scene is interrupted by another, the next frame from the man over board scene will most likeley not be the starting keyframe for the LCM, resulting in a non colored scene.
Checking that via live preview only ever works by first triggering the starting keyframe for the LCM. Without going to that one first, you'll end up with no colors.
Also, the delay for LCM scenes is not adjustable. Although LCM is supposed to basically "overwrite" transitionframes (usually 24ms), it doesn't seem to work for me very well. Using single frames and setting the delay to 1500 has been solving many issues for me, although of course not all of them.
If there is any other questions