Question about controller configuration and syntax

[chonfx]

I looked at Dolphin's own page explaining the syntax and it didn't fully explain it. I've been playing Metroid Prime Trilogy using the Primehack. The problem I have in that game is you have 4 beams and 4 visors. What I wanted to do was map it out so the dpad does 4, but then holding the dpad does the other 4. I'm wondering if this would be possible to do with the operators and functions. I was able to set it up so that the beams went after holding a direction for 0.5/s, but that will always activate the other mapping. I'm wondering if it's possible to set it up so that when I go for the 0.5/s hold, it doesn't trigger the secondary mapping. If anyone knows where to find a more indepth explanation of the syntax, it would be much appreciated.