Yes, you can store an array in a LV global variable. It is not always a great idea to do so. I have attached a very simple example below if this helps. You may also want to take a look at the link below for tips on using global variables judiciously.
http://www.ni.com/devzone/lvzone/dr_vi_archived1.htm
Regards,
Brent R.
Applications Engineer
National Instruments
