You will need to be familiar with editing the aircraft.cfg file.I use notepad myself.
I actually cheated. I already had the America West series by Mike Bores which came with 9 liveries.
All I had to do was make a complete copy or the folder. Then go into the cfg file and edit the entries -- changing the "texture=n" to call for the appropriate new dutch livery, and the ATC callout, and the UI_variation to the name of the livery. Then delete any left over liveries (in my case i deleted 3 at the bottom).
THen you delete ALL of the existing texture folders and copy in the 6 new texture folders. Worked fine.
Course if you don't have the AW series, just take a copy of any other iFDG craft and essientally do the same thing except this time you'll have to copy the original livery entry [fltsim=0]and paste in in below the first one five times. remember the [fltsim=n]value must be changed upward for each entry. Failure to do this will prevent the out of sequence liveries from showing up in FS.
Once you pasted in the 6 livery profiles just modify then as I suggested at the beginning.
This all made since as I was writing it, but in reading the final product, am not so sure. but trust me, this does work.
it means something, I just can't remember what
"it means something but I just can't remember what."