An application, and maybe a node not sure, that is unmanaged, was set for a period of time. However, if we want to extend that time of unmanaged, then we have to remanage, then unmanage and set the new date / time for the new period.
I think that if a node or app is unmanaged, I should be able to see what the time period of the unmanaged state is and edit those properties as needed. I do not see where that is possible. I was thinking that a new tab would appear in Assigned Applications Monitor section, next to delete when you select an unmanaged application. Unmanaged properties or edit unmanaged time period.. Need something.