Hi,
For now, only string is supported to be sent via RPC.
you can support more types, but you will need to plug that manually in the code.
The thing with RPC is that it should be taken care of with extreme care when it comes down to data being sent out, because it quickly gets out of hands and compromise network bandwidth and overall game experience, that's why I only support string.
What you can do, is construct a string out of your array ( using get next you add to the string each values) and on the other side, deconstruct ( use "," as a delimiter for each of your item).
Bye,
Jean