ToME: the Tales of Maj'Eyal

Hi, i'm working on a new Dragon Race Character and have a few questions for it's /birth/race/dragon.lua

Primarily I want to be able to:-

1-have some of the Race ActorTalents, and Class talent_types:-
(a) not even appear visable (not just unuseable) until the player has reached a predefined playing level;
(b) only be visable and active between two predefined levels; and
(c) dissapear (including the talents) after a predefined level has been passed;

and

2-change some of these between two alternatives depending on the class the player has chosen (such as they being passive or substained).

Has anyone had a go at this or an idea how it would be done?

I've got a few worse ones yet, but this is the first one I need to sort out else my character idea just won't be workable.

thanks

I suggest you:
a) Don't.
b) Link into the player levelling up somehow and do everything from that. The birther code is of no use for what you want to do.