Chiemsoft SiteSync 1.0.10 (x64)
 

Export your enhanced form from FormSync in Syteline
Use SiteSync to capture only the changed FormComponents, EventHandlers, Variables, and Form Script from the scripted form compared to the form of another site.
Export the injection script from SiteSync
Load the injection script from SSMS in the site(s) you want the changes imported to
Changes to the form will be imported to the form without the need to load a full FormSync exported scripted Form, protecting any unique enhancements in the target site(s) for that form.
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