I'm going to have several 3-gang j-boxes with various dimmers, remote dimmers, and circuits.

One of them will have 3-way and 4-way master/remote dimmers for the dining room table light, dining room table accent lights, and kitchen recessed lights. This j-box is the load side.

Dining room dimmers 1 and 2 will be on the same breaker... the kitchen dimmer on another.

I could wire-nut each pair of neutrals separately... or to save some space in the box I should also be able to wire-nut the four neutrals for the same circuit together, correct? If I do that the returning current should split between the two legs.

Is there a preferred or required way to wire the neutrals?

Thanks.