Jenya, The main Orion web console controls all jobs so no need for additional web consoles.
Before NCM 7.2 jobs used the windows task scheduler vs the Orion job engine which meant that jobs had to be duplicated in the NCM win32 application locally on every poller but that is no longer the case.
In NCM 7.2.x jobs are all managed together in the NCM website and use the Orion job engine to schedule them.
So -
When the additional polling engine mode is chosen the same exact job will run on all pollers and operate on nodes that are assigned to that polling engine.
Hope this helps!
Matt