How I do it : Grab an Invoke Node, set the "Select Class" to VI Server > VI. Set the "Method" to Reinitialize All To Default. Put this at the beginning of your program.
If I want some indicators to read a certain value at startup, I either use an INI file, or if it's just a few things, I set the value with a local variable write, just after the Invoke Node does the Reinitialize.
Richard