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You have a few options. Use a radio control if the booleans are mutually exclusive Combine the booleans into an array and then convert that to a number Nest your case structures

I have two answers which might help: Answer A: Purchase Teststand and learn it. Without specific details I cant be sure, but it looks like the sort of application teststand is built for. If someone gives you crap about the cost, I'd argue that for sequential things like you've shown here teststand is a lot more maintainable (the bus factor for the code above is likely 1, and potentially 0 after a few months away from it). I'd also add that it has a lot of standardized reporting stuff built in...and if you're calibrating stuff, this would seem to be critical. So seriously, at least let someone from NI spend an hour giving you a demo. Answer B: Looks to me like your first step might be to take some of those 50 front panel controls and put them into subVIs that are set to run as dialogs (in VI options, show front panel when called and close front panel when done). Those dialogs can take some of the logic thats in your main loop and organize it a bit -- "this event case is associated with this user input", and so on. Those dialogs can return small clusters with the configuration (Monitor is a cluster of model[str] and serial[str] and resistance[u16]). If at the end of this you still have a ton of wires, as hooovahh says you can turn that into a clustersaurus/BFC, but its still better organized (clustersaurus->monitor->model vs just having a control called "monitor model" sitting out there). Once you have some of what I'm going to call the "non-business logic" (eg the UI logic) out of the way, I think a state machine is a reasonable migration point to start with. I would add a caveat to this, which is you should also learn about different communication tools within labview -- in this specific case, queues and user events (a type of queue which works with the event structure) or "channel wires" which are intended as a simpler wrapper around the queue/event concept). I say this because it looks like there are several long-running tasks without user interaction, so creating parallel loops to run different tasks seems like the next logical step. In general you would use a queue to send data (eg "start running standard cal") from the UI loop to the tasks loop, and use a user event to send information (eg "I'm done" or "an error occurred") from the task loop back to the UI loop. drjdp has a video on some of the considerations for this here although it may be too much for you now -- hes coming at it from the other end "I've been using this pattern for a while and heres where bad stuff happens". Once you've mastered this version, and if you feel like its still complex, the next step would be to dive further into frameworks (things like delacor's QMH or drjdp's messenger library or ni's actor framework which are arguably in order of increasing abstract-ness) -- in these frameworks more stuff happens asynchronously from one another which can make the code more modular (the "standard cal process" is always over in this one library while the user dialog input is always over in this other library) but theres obviously a big learning curve and frameworks tend to require you fit into them rather than the reverse.

Most Brians I've met are pretty cool, but those shifty Bryans on the other hand I wouldn't be to sure about.