I have one primary loop (while loop) and multiple secondary loops (while loop). I would like to send command vice versa. Command send from multiple secondary loop to single primary loop:--------------------------------------------------------------------------------------------If I would like to send command to primary loop from secondary loops then I am using custom user event. I am generating custom user event in secondary loop with some identifier, and custom user event is only handle at one place, in side the primary loop. Identifier is help to figure out command is came from which secondary loop. Command send from primary loop to specific secondary loop.-------------------------------------------------------------------------------------------Is there any way? I can send the command from primary loop to specific secondary using any mechanism in LabVIEW.if there is single secondary loop then I can send command using Queue, but Here I have multiple secondary loops. I need to send command to specific secondary loop.Here I am placing the example. Here I have example. Experiment 1 and Experiment 2 is communicating to main loop using User Custom event. I am try to figure out the way which will help report data back from Main loop to Experiment 1 and Main loop Experiment 2.Number is Experiment is not fix in actual version it will be very depending on requirement.I thought notifier will work for this functionality but there is one thing which I found in Solution that it may overwrite the data. Data rate is very high in my application. https://knowledge.ni.com/KnowledgeArticleDetails?id=kA00Z000000kFGfSAM&l=en-US Any one please give me suggestion how should I need to handle this issue?

If your loop has an event structure, then you should use a User Event to send messages to it. Do not use a Queue like you show. Put your Experiment User Events in an array if you have a variable number of Experiments. You can then send info to a specific Experiment, or to all of them, as needed.