Question: In the Typed List editor (opened by selected Edit/properties on a typed list) I can't find the Add / Remove buttons to add or remove an entity from my typed list. How to make these visible?

Solution: It's likely you have the Application Output window docked below the Typed List editor, which makes the TypedList editor to scale and hide the Add / Remove buttons with other controls. Please click the pin button on the Application Output window to hide it at the bottom of the designer. You can create extra space in the editors by disabling the little help bars at the bottom of the editors by setting the Preference 'ShowInScreenHints' to false. This requires to re-open an editor to take effect.