Beam design rule definitions may be removed using the "Delete" button. Using this button will remove the currently selected definition.
If the currently selected definition is newly added to the table during the current menu session and has never been saved, then the "Delete" button will remove it immediately without any additional confirmation required. However, if the definition has previously been saved, then the "Delete" button will trigger a warning requiring confirmation before removal:
If the currently selected definition has already been applied to one or more elements, the user will be warned that definitions cannot be removed while in use:
The elements in question may be assigned a different rule as described in Applying Rules to Elements, or the rule may be erased from the elements, as described in Erasing Rules From Elements. Once the definition is no longer assigned to any elements, it may be removed.