I don't think that there is a way to restrict the use of a button without doing a little code.
Usually, we tie application security to the userid of the person logged in. Sometimes it's enough to pick up tne network ID & verify that against a table of "special" users (or do this in hard code, if the list is exceptionally stable.) Other times, we do a full password/userid login screen when the application opens.
You can either let everyone see the restricted button, and check security in the button's "on click" event, or you can check the security when you load the form, and make the button visible and enabled only for the users who should have access to it.
[This message has been edited by Chris RR (edited 01-11-2001).]