Multiecuscan

Hi first time using to which received FESPKG FULL package usb for my fist ducato
All set up and downloaded software etc ready to use
But don’t want to do any damage so a little confused with what’s it the package what to plug in my obd reader first
I have the vlinker fs
The kkl vagcom
Then 6 different colour adapters
Which out of the 2 do I use and how do I know if I use either one with no adapter colour I won’t do damage lol just making sure it’s a lot of gear to look in my gearbox and do calibration etc

Or can I plug either in and before attempting to carry out certain tasks I will be warned I need the certain colour adapter ?
Does the vlinker connect to engine
And kkl for can? Can someone please explain a little please I can’t find anything on this

Ok I just did vehicle check and makes sense now I only need green adapter for fiat ducato 3.0 multijet 160
Confused why I was told to buy this full kit but …. Love it already very cool
I’m seeing them I use green adapter with the kkl vagcom usb