Queue Tree and SNMP

Dear all, using MT 3.7.
I’m having problems monitoring Queue Tree via SNMP.
I’m testing Solarwinds Orion to monitor our routers and switches. Before Orion I tried also PRTG and NetFlow Analyzer, but they share one problem - I can’t add custom MIBs to monitor.
Orion has the option, but I can’t make it monitor Mikrotik’s Queue Tree. It has the ability to import XML files with OID configuration.

An original example:

<?xml version="1.0" encoding="UTF-8"?>

I have downloaded the file mikrotik.mib from 2.9 documentation and I have tried many combinations by modifying the original example, but without any luck.

This is my latest file:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>

I really don’t know what are the correct values ( more that 12 hours of guessing =) ) and can’t seem to find any good info regarding this subject on the net.

Please point me out in the right direction.
Thanks.