lordcacops

I apologize in advance to wendycarlos for a future indiscretion of mine that I will probably won't be aware off, even though I did search "good manners" in Wikipedia.

That being said: I am struggling to figure out how to build a system that does the following.

I am getting a bunch of lists from an [mxj] object that draws from an external that I built. Each list has an integer as it's first argument. That integer determines that the information on that list gets sent to the appropriate place (slot) in the system. What I need is a system that blocks incoming lists where the first argument is the newest index number being sent from the [mxj] minus the fixed number of slots specific for each index (10 in the coming example).

That might sound a bit complex so I'll explain it with an example.

...so the information is coming from the [mxj] Outlet or Outlets.

but since there are only ten slots, when the list preceded by the index number 10 comes out of the [mxj] object for the first time, all lists whose first argument are 0 will be blocked from that moment on, and when 11 appears, all lists having 1 as their first argument will be blocked, and so on, eventually cycling through the whole system so when the list with the index 20 appears, both 0 and 10 will have to be blocked, and when 31 does, lists with 1 and 11 and 21 will be blocked so that they cannot go into the larger system.

I apologize in advance to wendycarlos for a future indiscretion of mine that I will probably won't be aware off, even though I did search "good manners" in Wikipedia. 

That being said: I am struggling to figure out how to build a system that does the following. 

...so the information is coming  from the [mxj] Outlet or Outlets. 

0 aifuou
1 zsasd
2 feijij
3 fijiof
(...)
9 asoap

but since there are only ten slots, when the list preceded by the index number 10 comes out of the [mxj] object for the first time, all lists whose first argument are 0 will be blocked from that moment on, and when 11 appears, all lists having 1 as their first argument will be blocked, and so on, eventually cycling through the whole system so when the list with the index 20 appears, both 0 and 10 will have to be blocked, and when 31 does, lists with 1 and 11 and 21 will be blocked so that they cannot go into the larger system. 

Message trap that discriminates between index numbers