There are already a couple ideas to retain wire values on a hierarchy (here and here). This is a request to disable (or toggle) the 'retain wire values' option on all VIs of a hierarchy in the same vein as 'disable breakpoints on hierarchy'. This request was spurred by an investigation into VI performance on resizing a very large 2D array of strings, wherein several memory allocation strategies and lookup strategies (arrays, maps, variants) had been exhausted, only to discover that a subVI whose (front panel and diagram had been closed) was set to retain wire values. Merely toggling the retain wire value setting off on this particular subVI improved performance by approximately one order of magnitude for this particular project.
Investigating and accurately measuring run-time LabVIEW performance can be challenging with so many debugging tools available, the impacts of which are not immediately obvious. For this reason, I would like to see a menu option that recurses on VI hierarchy and toggles the 'retain wire values' option, in the same vein as the option which removes all breakpoints from VI hierarchy. The option would be very helpful with run-time performance investigation or optimization.
