Add Premade Sim to Family in Create-a-Household?

not  a silly question at all...you can have a household of eight sims max to add the premade sim to your family in CAH while your creating family  by clicking add sim  IF your already playing a game and want to add a premade sim from CAH go to add edit town go to CAH find the premade you want when the sim is made the way you want then click the tick this will add the sim to the game libiary then click that sim in the libary  click your lot then you will have the option merge to add sim to the household click accept