This summary is not the rule. The rule text controls.
Here's a plain English summary of this rule:
Justice courts get to decide their own local process for setting trial dates. Each court can create rules that fit how it handles scheduling, so the exact steps might look different depending on which court you're in.
There's one important exception. If a law says a certain type of case must be handled first, the court has to follow that law. This means some cases jump ahead in line because a statute requires it, no matter what the court's normal scheduling process looks like.
For people with a case in justice court, this means you should check with that specific court to find out how they schedule trials. It also means that if your case falls into a category that gets legal priority, it should move through the system faster than a typical case.
