---
title: "Parameters"
url: "https://help.maxon.net/c4d/en-us/Content/html/IN_SELFDYNAMIC-ID_GVPORTS.html"
section_path: "Thinking Particles > Nodes > TP Initiator Group > P Pass > Parameters"
element_id: "IN_SELFDYNAMIC"
group_id: "ID_GVPORTS"
description: "To choose which group of particles the node should output, drag the name of the desired group from the Thinking Particles settings (XPresso Editor: Custom …"
---

## Parameters

To choose which group of particles the node should output, drag the name of the desired group from the Thinking Particles settings (XPresso Editor: Custom > Thinking Particles > Settings) and drop it into this box.

### Particle

Parameter ID: `OUT_SELF_PARTICLE`

Connect this port to the Particle input port of the node that should receive the group of particles.

### Particle Count

Parameter ID: `OUT_SELF_PARTICLECOUNT` · Range: [-2147483648..2147483647]

The number of particles passed by the node.

### Index

Parameter ID: `OUT_SELF_INDEX` · Range: [-2147483648..2147483647]

The index number of the particle passed. This is especially useful when creating particles in **Shot** mode.

![Image: 002695.jpg](https://help.maxon.net/c4d/en-us/Content/Resources/Images/002695.jpg)

Suppose you want to set the position of the 30th particle created to the same position as a Null object. Use the node setup shown here and set the Compare node's Function to **==** and Input 2 to 30.