If you change to studio mode in the setup menu then no more flashing cue lights and you have adjustable send levels for all of the tracks instead of just cue on/off. But make sure you turn down the cue level for the send track itself when you’re in studio mode, otherwise you’ll get LOUD feedback. But once you have a feel for it, you can play with microtiming, multiple trigs and feeding the send track back into itself with its cue level to create your own delays from scratch. And even though you only have one send level control via cue, there’s nothing stopping you from having more than one track in parallel set up as sends, or using the internal send track and outboard effects on the cue outs at the same time.
The down side to studio mode is that if you change the level of a rack it won’t change the amount of it being sent to cue, so it’s possible to find yourself in a situation where, for example, you’ve slowly faded a track out using its level control but it’s still being sent to the effect track at full volume, so you hear its reverb but not the dry signal. Which can be a problem or a useful technique, depending on whether you meant to do it or not. Adjusting the volume on the amp page or muting a track affect both main and cue, it’s only using the main track level control in studio mode that you have to remember to adjust the cue level separately.