# FMOD Designer 2010 and Event Viewer Help - custom parameters

**URL:** <https://qa.fmod.com/t/fmod-designer-2010-and-event-viewer-help-custom-parameters/19616>\
**Category:** FMOD Studio\
**Created:** [December 5, 2022, 5:55pm UTC](https://qa.fmod.com/t/fmod-designer-2010-and-event-viewer-help-custom-parameters/19616 "2022-12-05T17:55:45Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![TristanD79](https://avatars.discourse-cdn.com/v4/letter/t/9fc348/32.png) [@TristanD79](https://qa.fmod.com/u/TristanD79)\
**Post date:** [December 5, 2022, 5:55pm UTC](https://qa.fmod.com/t/fmod-designer-2010-and-event-viewer-help-custom-parameters/19616/1 "2022-12-05T17:55:45Z")

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Hey, I have a few questions relating to the image below, that I have not been able to answer looking through the FMOD Designer 2010 user manual.

I think the names (‘loop\_param’, ‘planet\_horizon’ and ‘view\_frustum\_distance’) in the red box are custom parameters attached to sound events. Firstly, is that correct?

The second question I have is how can I add these ‘custom parameters’ (if that is indeed the term) to new sound events?

Cheers

 ![image](https://canada1.discourse-cdn.com/flex036/uploads/fmod/original/2X/4/489a1dec65b0cacf2d4fa36115022da0b546b8d3.png)

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<div class="post-metadata">

**Author:** ![TristanD79](https://avatars.discourse-cdn.com/v4/letter/t/9fc348/32.png) [@TristanD79](https://qa.fmod.com/u/TristanD79)\
**Post date:** [December 19, 2022, 12:08pm UTC](https://qa.fmod.com/t/fmod-designer-2010-and-event-viewer-help-custom-parameters/19616/2 "2022-12-19T12:08:51Z")

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Bumping.

Still stuck on this problem sadly. I have looked through the 400 page document attached to FMOD Designer 2010, but can’t see anything about this?

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<div class="post-metadata">

**Author:** ![TristanD79](https://avatars.discourse-cdn.com/v4/letter/t/9fc348/32.png) [@TristanD79](https://qa.fmod.com/u/TristanD79)\
**Post date:** [December 31, 2022, 8:22pm UTC](https://qa.fmod.com/t/fmod-designer-2010-and-event-viewer-help-custom-parameters/19616/3 "2022-12-31T20:22:18Z")

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1. They are called parameters, as I thought.

2. In order to add them you must in FMOD Designer open the ‘Events’ (groups) tab, add a ‘Multi-Track Event’. Above the layer box it will say ‘(Right-click here to add an event parameter)’. Several options for different parameters will appear in a drop-down box.