void removeTreeInfo(TreeInfo **);
int numTreeInfo(TreeInfo *);
boolean validLevelSeries(TreeInfo *);
+TreeInfo *getValidLevelSeries(TreeInfo *, TreeInfo *);
TreeInfo *getFirstValidTreeInfoEntry(TreeInfo *);
TreeInfo *getTreeInfoFirstGroupEntry(TreeInfo *);
int numTreeInfoInGroup(TreeInfo *);
boolean CreateUserLevelSet(char *, char *, char *, int, boolean);
void UpdateLastPlayedLevels_TreeInfo(void);
+void StoreLastPlayedLevels(TreeInfo *);
+void RestoreLastPlayedLevels(TreeInfo **);
void LoadLevelSetup_LastSeries(void);
void SaveLevelSetup_LastSeries(void);