Yes it is an MT5 indicator, HMA … it is how i understood… thanks very much for replay!

Hi , I need some clarification if possible: I seem to have understood, reading almost all the posts on the subject, that being able to make a condition work where the color change of the line generates a buy or sell signal depends on the number of indicator buffer. so if there is only one buffer you can't get the signal.
I noticed a couple of answers talking about the block indicator visible but I don't understand if even then it depends on the number of buffers or if there is a way to generate the signal. Thanks a lot for being available to anyone who replies.