Getting speed from queue tree child

Hey guys, I wonder if I can get the download speed of one child in my queue tree with scripting like I can get download speed for an interface below.

	:while (true) do={
		/interface monitor-traffic [/interface find name=ether2] once do={
		:set ADown (tx-bits-per-second / 1000);
		:put $ADown;
		}

Thanks.

Found it!

:global checkrate [/queue tree get STEAM_D rate]
:set checkrate ($checkrate / 1000);
:put $checkrate;