I was wondering if anyone knows what the planning connections that show Dynamic Group with a selection of numbers below it between 1 and 8, and has a corresponding connection that flashes red.

You can see this in the stock Hoth map that has the connection for Huge (AT-ATs) with a dynamic group of 3.

I did do a search, so sorry If this has already been answered.

That's planning that can be turned off or on based on LUA events.

So would that be added for campaign scripts?

Edit: Thank you

You're welcome. It's always nice when someone remembers to say thank you.

One of their main uses is in campaigns, yes, but you can use them in other scenarios too. For instance, in one map, the modder had doors in conquest mode that were lockable/unlockable by destroying/fixing some consoles. When they were unlocked, a planning arc was activated. When they were locked, though, it was deactivated and the AI took a different route around.

Other examples from stock maps are Mustafar and the Death Star in spots where bridges can be destroyed, and Kashyyyk for some events related to the sea wall. I've never used dynamic planning myself, so I can't really explain how it works, but looking at any of those maps in ZE and checking out their .lua files should give you a good starting point for experimenting on your own.

Thanks for your replies. It's definitely given me something to think about once I try campaign scripting.