1. A method for saving files on a computer system, comprising the steps of: receiving a request to save a new file on a computer system; based on the request to save the new file, triggering a display of a system file panel for saving a file, said system file panel showing one or more indicia representing files that are already saved to a prospective location on the system and showing at least one preview indicia representing a file that is not saved to the prospective location on the system, wherein the at least one preview indicia and the one or more indicia representing files that are already saved to the prospective location on the system have different appearances in order to indicate the at least one preview indicia represents a file that has not yet been saved to the prospective location on the system; receiving a request to change one or more properties of the new file, wherein the one or more properties comprise metadata including file type; changing the at least one preview indicia to reflect the request to change the one or more properties of the new file; and changing the one or more properties of the new file if the new file is saved.