Official comment
1) Sorry, not at this time - FX-type fixtures are not yet supported so we have no recommendations for any "workarounds."
2) Not in the current version, sorry - but you could configure a "dummy track" to playback a user-created lighting macro and have that play on deck one while you use decks 3 & 4 to playback music during that time. We hope a manual / override will be available in a future update.