Hello, I am new here and hope to post in the right section. I am encountering a few problems with learning myself how to construct larger maplets. The first problem regards the simple enabling / disabling of a button with a check box. See the example code below. If the checkbox is selected, I would like to have the button enabled, and if the checkbox is not selected, it should be disabled. Simple as that, but I can't find out what I need to do to get the code working. The 'CB1'('value') statement is not of the correct type??