Help. Unable to load new instruments into GA 5!

As you can see from from my pic, I am trying to load an instrument into a pad with a kit called Acoustic Agent SE. No instruments at all will load. What happens is I drag the instrument name across, the pad does not give any grumble messages, but nothing happens. I have tried various positions on the pad, tried alt and or ctlr drags, nothing is working.

Is there an incompatibility thing going on?
Is there another route?
Is this normal?

thanks
Newbie mistake?

Z

I think I found the cause, its not certain, but i think it is write protected, meaning that you cannot use instruments in other kits?
Very odd, to protect Steinberg samples from other Steinberg kits?

Z