How do you dupe spawner you already made, and make all of them work?

I'm having to make a new spawner for every monster I add, and I am not able to dupe them the original spawner.

[add spawner

This kind of spawner not the xmlspawner.
 
yes I am, but this is a known thing. I've been running run uo for a long time, and I notice you can't just dupe spawner cause if you dupe a new spawner it will work on the last spawner, but the new one will not spawn anything.
 
You use the [dupe command to dupe the spawner, then [move to move it from your pack to the world, then double click it and click either "respawn" or the on/off button.
 
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