SMA must only buy/sell when following trend direction

[Luqmaan]

Hi i would like to know is there a way of getting moving averages to only trigger when facing up/down?

What mean is.

Lets say im using a 3sma for buy and 6sma for sell.

When 3sma above 6sma buy
When 3sma bellow 6sma sell.

But now...

Sometimes...

3sma is above 6sma buy but both are facing down
3sma is bellow 6sma sell but both are facing up.

I want the trade to only be opened when

3sma is above 6sma buy and both SMA's
are facing up

3sma is bellow 6sma sell and both SMA's are facing down