Need to display sub-vi front panels without stopping WHILE loop containing those VI's
Simply opening the front panels of acquisition subvis shouldn't
disrupt the operation of the main loop unless you are trying to do
something like plot large amounts of data. Is this what you are
Still, the technique you give will work, however another option you
might want to consider is to use a LV2 style "global" VI that stores
data in an uninitialized shift-register.