Thank you for your answer. I know how to use global variables in general, but the problem is that a Multicolumn Listbox (MCL) referred as a global is just the number of the selected line(s). I would like to access the <i>contents</i> of the MCL, which I perceive as a table. If this is a MCL in a normal VI, I can create a reference (and by this I mean a reference, not a local variable), and use a property node to access the ItemNames property, which gives me the contents of the table (I could of course also have created the property node directly, but the reference can be passed to subVIs).
However, if the MCL is a global variable, it is unclear how I can create a reference or property node to access the contents. Is this impossible, or is there something that I overlooked? Martin
