Help: items of same name to spawn separate patrols

Greetings, I am reworking one of my arcs to add in a bit more dialogue. In the original I used a single destructable item and set it to spawn 5 times, after they were destroyed, a mega patrol would appear.

I am now trying to set it to stagger this massive patrol by making 5 instances on the singular spawn, using the technique I had read of, that involved naming things the same but adding spaces at the end to get around the fact they would create the "same name" error.

This works fine for the original and the 2nd, but once I try to add a 3rd, I begin to get error messages, and it will not republish.

How do I solve this? I feel I am missing some basic technique.

Two spaces for the 3rd, three spaces for the 4th, etc.

Note that there is a bug in the MA where if you save the arc, close it, and reopen it, then edit one of the details with more than one space at the end, it will fail to count everything past the first space. So any time you open one of those details, you have to delete all the spaces (You won't be able to select them, but they'll still be counted in character count so you have to use "Delete" rather than backspace) and retype them. That's probably what's happening with yours.

I recall last I tried duplicating a name with spaces the spaces were removed and it complained they had the same name none the less.
Does this really work? (as trigger, too?)