Hi ouchie,
how long have you been using LabView? Have you heard about sub-vis and while loops?
-Create a while loop in the subvi, wire the "Continue" button to the stop terminal - now the subvi will run until you press "Continue"...
-Make an event ("value change") for each button in your main vi. Now you can start a subvi with each button. When the subvis run longer you shouldn't include them directly in the event structure but prefer some producer/consumer-pattern (by default the event structure will block the vi until the event case is handled...)
You should also participate
here
Best regards,
GerdW

using LV2016/2019/2021 on Win10/11+cRIO, TestStand2016/2019