Pro/PROGRAM

Hello community! My question is if we want to add a component n number of times to assembly using pro/program, (Ex.: 4 nos. of part.prt) how can this be done. Also if we want to decrease the number of a given part in an assembly (Ex.: If assembly contains 7 nos. of part.prt and in another instance I want 4 nos. of part.prt) how can we do that?