Prop Collection Question

Is there a way to reference a property within a prop collection directly? The only information that I’ve been able to find for handling prop collections uses a for loop to cycle through the collection. I’m asking this because I need to make a slider for one of my properties within the collection and I’m not sure if this is even possible.

EDIT:
Okay, I found it! Took a bit of poking around, but was able to access the collection like an array. My new question is whether collections remain sorted based on when they were created? Also, is there a way to shift properties up and down the list order?

They pertain order and you can move around entries using the move() method. The parameters are two ints, both indices of entries you wish to swap.