The dialog box telling me that my model has changed and asking me if I want to reset the domain and mesh settings is very annoying.  Normally I just turn off the flow addin if I am making model changes but when I need to use a tool like the lid tool and I have lots of little vents and it wants to pop up the warning/question for every lid and you can't say yes to all it will drive you nuts.  I really think that the warning should only come up when you click back over to the flow simulation tab or when you go to run the model.  Or as the title suggest maybe you can specify to suppress the warning for a period of time like the next 30 min or something.