Pool Members Port

Hello everybody: first of all kindly be informed that am new in F5 field, so may my Question very simple. in our F5 virtual machine I configured new application with port 8050, during testing period it's working fine. now am in order to be in on production. my questions which it need your help: 1- how I can modify the existing pool members ports. (Is it need to remove the existing member and create new one with the new port). 2- what's the impact of changing. many thanks for your usual support. :)