Parashara's Light for Mac File Manager lists your files by the name of the person and automatically saves without you needing to specify a filename. Also, the File Manager allows you to preview the chart before actually opening the file. Quick chart file can easily be used.

File Manager Screen
Files can be copied or moved from directory to directory, or from directory to Quick chart file (and vice versa). Charts can be deleted without having to go through the Windows File Manager.