Scintex Support

Is it possible to increase the time period from 28 days when a solved ticket automatically changes to closed? The issues we're using Zendeck to track will often exceed 28 days as often parts will need to be ordered in for customers from overseas. We end up with all these new tickets on the same issue and it gets very confusing and difficult to follow. We merge tickets to retain the history but it would be far better and easier if we could increase this 28 day value. Is there any reason this couldn't be a user defined value?