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After reading this LabVIEW Idea exchange request: http://forums.ni.com/t5/LabVIEW-Idea-Exchange/Provide-a-better-way-to-implement-a-polymorphic-VI/idi-p/920487 I was inspired to create VI macro(s) to attempt to address the problem mentioned in the request. Attached is my first attempt and I'm looking for feedback since I know people here have strong opinions. The benefit of this method is that a single vim (or 2 could replace a polymorphic VI with over 48 separate VIs....unless I'm missing something. I know that VI macros are not officially supported by NI, but that hasn't stopped us from using unsupported features before. Some people have probably already done something like this, but I couldn't find an example. To use the files, unzip them and copy them all to your \LabVIEW (version)\user.lib\macros\ directory. Create the directory if it does not exist. For example: C:\Program Files (x86)\National Instruments\LabVIEW 2014\user.lib\macros\ And as described in the wait-ms-with pass through post below, modify your LabVIEW.ini file to have the following ExternalNodesEnabled=True and Optionally XNodeWizardMode=True http://forums.ni.com/t5/LabVIEW-Idea-Exchange/Wait-ms-with-error-pass-through/idc-p/3178218#M31820 Open the Example Changed.vi and review. Changed Example.zip