@habib420 It depends on the indicator. Firstly you need to omport it into your fxDreema account and check if its buffers are correctly identified by the platform. Here you have some tutorial to do it:
https://fxdreema.com/forum/topic/4208/tutorial-06-my-indicators-in-fxdreema
https://fxdreema.com/forum/topic/9105/tutorial-working-with-ex4-ex5-indicator-file