AFRLme, first I like to say I am appreciate your commitment to every post, Thank you.
Now I dive into Visionaire I do feel safe to upgrade my environment to 5.x, is thet change is straightforward?
About the scripting, I am developer and using in my day job many scripting and programming languages, tell the truth, I am felling more comfortable will reading Lua code

It's more or less the same, but it might take you a minute to wrap your head around the new GUI & layout. I recommend creating a backup of your ved file as once you open & save a ved in Visionaire Studio 5, you won't be able to open it again in Visionaire Studio 4.
By the way, you can have both 4.x & 5.x installed at the same time.
As for Lua script. It's a really easy language to learn. Once you understand the basics, you just need to use the wiki or Simon's Luadocs documentation page to get the data structure table names for accessing/manipulating various things in Visionaire Studio.
http://www.visionaire-studio.com/luadocs/ (simon's luadocs documentation page, which is more up to date than the wiki & has lots of code snippet examples, but unfortunately the data structure stuff has no descriptions)