Custom ability feat ?
 

on the arch type tab is it possible to create feat that would allow you to select an additional ability that has been added under the Custom ability, Secondary ability etc.

if so how would I go about doing this?

I have already gotten the abilities that I have added to display correctly at each level that you get them at. In the campaign that I am in you can buy additional abilities with XP.

Is the Extra Rage Power feat an example of what you're asking about? If that's not what you mean, could you please rephrase your question?

No it is more like extra Rogue Talent. would it be easier to make three feats
to each select their own linkage table? the arch type gives you three Graces that each have their own tables to select from. The reason that I need a feat other than just adding extra abilities to the level select for the table is that the way the gm has implanted the abilities is that you get one abilty at certain levels that the easy part that hard part is that you can also buy them via experience that is why you need a feat.

if I used this script from erta rage power could I substuite the name of the arch type that gives the feat in place of the class?

hero.childfound[cHelpBbn].field[cGiveSpec].value += 1
[hero.childfound[arExMattPa].field[cGiveSpec].value += 1


hero.childfound[cHelpBbnUn].field[cGiveSpec].value += 1
hero.childfound[cHelpSkl].field[cGiveSpec].value += 1
hero.childfound[csBarbaria].field[cGiveSpec].value += 1

would highlighted point to the arch type that I made?

what is the line below doing?
hero.childfound[cHelpSkl].field[cGiveSpec].value += 1


is the line below going to the barbarian class special table and giving the barbarian one extra rage power?
hero.childfound[csBarbaria].field[cGiveSpec].value += 1