How to indicate that the loop is in progress

[ku_ku]

Yes, I understand your point... looks nice.

I'm only curious... what you recomend for case, if there were four Measure VI's insted of one and they can not be carried out at the same time

[altenbach]

Just add more cases to the case structure...

[ku_ku]

Is it possible to pass data from case loop that executes Initialize to the loop that executes Measure Vi...

Im making simple measuremet sot that has three basic functions... Initialize ... Measure... Save..   each of them should be initiated by presing the button. Is it possible, using this structure to pass data from Initialize loop to Measure loop and from Measure loop to Save loop?  

Or different approach ussage could be more efficient?  

[crossrulz]

You can use shift registers to pass data between iterations of the loops.  That would be the best way.