change in velocity (pptp)

RouterOS Scripting
1

Greetings!

4.12 to use a script change the speed, but he looked like this:

local i 0;
foreach i in=[queue simple find max-limit=5M/5M] do={queue simple set $i max-limit=10M/10M limit-at=10M/10m};

after the upgrade to version 5.20 has stopped working. that should be corrected in the script?

2 
{
/queue simple
:foreach i in=[find max-limit="5M/5M"] do={
set $i max-limit="10M/10M" limit-at="10M/10M"}
}