I have tried using the "substitute" command to renumber members.  The command was entered as follows:

SUBST MEMB YR 29.0 33.0 START 900

I entered this command immediately after definition of member properties.  This command has no effect and the members are not re-numbered.  Can you indicate any corrections that should be made?  Is there a specific location in the command file it should be entered?  Is there a more reliable way to renumber member numbers in the GUI?.

Thank you.