egining of the of the program i hide some control strings and after execution, i display these in my user interface for inetract with user. what i need is to display this string variables automatically after my first phase of the program is finished.thanksThis is a small example (in LabVIEW 6.1). For create property node you must right click on terminal and then select Create->Property node. Try change Disabled property to 0,1,2 and enable/disable visible and look what happend with our boolean control. You can do the same with numeric or string, or other controls and indicators... Hope it help.