HELP on setting 3 EMA Long or Short

Hi there!
I'm trying to delve into CP settings.
I simply wanted to adapt an old technique of the 3 averages: 3 EMA that if they are greater than the other you go LONG, otherwise if they are lower than the other, you go SHORT.
Example 3 EMA: 8, 20, 40.
If EMA8 EMA20> EMA40 then LONG (and close current trade).
But apparently this setting (on MACD, as recommended in chat) does not give me this result.

The .set file is this: EU_1H_3EMA

In the screenshot you can see that he makes many trades, but only in the ellipse what is requested happens, and only in the ellipse should he open and close the trades.

Unfortunately I can't figure out where the setting is wrong.

Finally, this is not meant to be a winning strategy or anything, but I simply need to understand how to set it up to make it work with the double crossing of EMA the way I want (always if possible and if CP allows it).

Thank you