For a popup window that requires the user to select one option only from a tree menu, should the selection of this option automatically close the popup?
I think this would break the fundamental rule of preventing errors however I need evidence to support this.
One design solution, was to include a Save button which the user selects after choosing their option. The Save button then closes the popup window.
(The popup window also has a close (X) button to the top right).
Any feedback / links to resources would be great thanks.