Right, very easy.
Most of those consoles on that kit are system status indicators, if they are green you're good to go. The rest are controls for the displays and signal processing system for the radars or manual overrides to allow the system to be operated in the face of ECM or minor equipment system failures. If any of those systems break, you will need an experienced technician to fix them and if you're operating with friendly air forces and in an ECM environment experienced operators are a must, however the actual engagement sequence of this system from the layout of the kit is very likely to be very similar to that of most other Russian mobile SAM systems as they are all heavily automated. To engage a target once the system is fully run up, three or four actions by the man of the left after he has picked up the target on the search radar, three or four by the guy on the right hand console, missile away. Seeing that the kit has been kicking around since the mid 1980's it is very likely that there are plenty of ex Soviet / Russian / Ukrainian armed forces personnel about on the rebel side who could operate this system to a standard that would allow an aircraft at 33,000 ft to be engaged. The question is where did the missile system come from?