I have a problem working with indicators related to quick change of currency pair symbols

 
Hello friends
I have a problem working with indicators related to quick change of currency pair symbols, I tried 5 examples of these indicators and none of them could change the currency pair window. Metatrader is the latest version in use and my operating system is Windows 10. I installed them from mql5.
 

Sorry my crystal ball has got a crack :(

  1. What do you mean by "I have a problem"?
  2. What do you mean by "quick change of currency pair symbols"?
  3. What do you mean by "none of them could change the currency pair window"?