Currently if we want to have a unit traverse between entities emiting a certain signal, the only way to do that is the match loop. But if you need to loop through a second set of entities inside the first loop. the next time you go through that second loop, you can't skip to the last entity you previously accessed.
I'll try to phrase it this way.
First time through the first loop, the nested loop runs 3 times.
The second time through the first loop, if you want to nested loop to skip to the 4th entity, you need 1 paramater to store how far you got last time, and a second one to count your itterations this time, and a 3rd to know if the number of entities being looped has shrunk.
You then also have to run a comparison, reassign and clear parameters. I also found it necessary to have to run an inital loop over the second set of entities to tally what the total is, so that if after your've looped through everything in the second loop if you looped more or less times then the inital count, it needs to recount.
Look at behaviour Fetchv2
