adding stuff to a model

[DigimonArena]

ok i got a model
this model was created so that he alredy has a sword in his hands and has not been added its actually part of the model
so i found an other better sword is there any way i can replace that sword with the new one trought WE o triggers?
or do i need to have a special program?

 

[Weep]

Please create only one thread about the same question.

 

[DigimonArena]

i just tought id repost it better
plz someone help!!