...
GiD_Project set last_general_mesh_size ?<size>?
The value <size> must be a real positive number to remember in memory the last general mesh size for the next time
GiD_Project set changes_dataset <dataset> ?<0|1>?
To set or get if the dataset has changes and its file must be saved
<dataset> must be one of: "GEOMETRY_DATASET","MESH_DATASET","MESH_DATA_DATASET","RESULTS_DATASET",
"MESH_PREFERENCES_DATASET","GLOBAL_PREFERENCES_DATASET","LAYERS_DATASET","GROUPS_DATASET","GROUP_ENTITIES_DATASET",
"CONDITIONS_DATASET","CONDITION_ENTITIES_DATASET","MATERIALS_DATASET","INTERVALS_DATASET","DIMENSIONS_DATASET",
"UNITS_DATASET","LABELS_DATASET","LOCAL_AXES_DATASET","BACKGROUND_IMAGE_DATASET","RENDER_DATASET",
"EMBEDDED_DISTANCES_DATASET","VIEW_DATASET"