Ok so I found switch number from Ibanez parts site.
Official name for switch is 3SW1JPM3T. This thing costs 54 euro! I saw that others are calling this one twelve contact 4P3T or two DP3T switches fused together.
Look like this picture shows connections for middle position.
This diagram is for 4PDT which looks smillar to the previous diagram link:
Link to diagram picture