GlobalVariable (Client terminal level) Can it be an Array of double?

If you are referring to GlobalVariableSet/Get, no

ok thanks for the feedback

do you know a way to share a array of doubles between 2 EAs runing on 2 symbols?

thanks

Maybe through a common library using a static array. Possibly written as a DLL.

Or just write the data to a file.

thanks for the feedback

well writing to a file is not compatible with "high speed" sharing of data between EAs

Do you know good pointers to how to develop simple dlls to share array between EAs?

thanks in advance

There's a complete DLL sample in your installation

I doubt your code will choke on file access, give it a try.

If it is "slow" then mount a RAMDisk to hold the files.