1)
Are there any other levels beyond KP-X that contain a multi-level power up?

Also, has anyone seen RaffleBot give one out? I haven't seen it happen yet, but it's possible it's like the 1000 on the wheel formerly named Coin (rare).

2)
Also, while using a multi-level and you start playing a 2nd level simultaneously, can you abort the first level you're playing and start another?

ie: does the started 2nd level create a "2nd slot" that remains until the level is finished (or aborted), or does it just kick off a simultaneous 2nd level, and when either the 1st or 2nd game finishes, you're locked back to 1 game at a time again, regardless of which one finishes first?

Kind of wondering for example if I could kick off a difficult new multi-level that will take 2-3 weeks to finish ... while using the other slot to replay some of the earlier levels, or if after the first replay of an earlier level, I'm stuck with just the 1 very long level.

it just kick off a simultaneous 2nd level, and when either the 1st or 2nd game finishes, you're locked back to 1 game at a time again, regardless of which one finishes first?

This. That's why it's most powerful when used on longer levels.

Thanks, that helps me plan how to use it more effectively.

What about #1? (;

Is there a multi-level hidden somewhere on another level beyond K-PX?

At least up to "1045AD: Roads of Silk and Irons" I've not seen any more of those juicy multilevels. And I can see all territories in the mentioned level already.

That makes me sad.

... while using the other slot to replay some of the earlier levels...

Or you could use the skip level power up first and then use multi level to play two new levels.

That is the intent, Pepe, and I have enough skip level power ups, but need more multi level power ups to do so. But seems only KP-X has one, no other levels.