4GL and SHH Clients

Hello there, i would like to ask how to emulate the SHH client to work with my application. My application i wrote it in 4GL and i used F14 and F13 to do some tasks. but when i used SHH Client i cannot use F13 and F14. i need some way to manage this problem. i need to get F13 and F14 work. i spent many times to do that but without any result. can somebody help me to find the right way to get my problem solved. regards Muthana Technical University of Hamburg (TUHH)