# Set 3D parameters of an event started via command event?

**URL:** <https://qa.fmod.com/t/set-3d-parameters-of-an-event-started-via-command-event/16849>\
**Category:** FMOD Studio\
**Created:** [March 9, 2021, 12:45am UTC](https://qa.fmod.com/t/set-3d-parameters-of-an-event-started-via-command-event/16849 "2021-03-09T00:45:33Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Alcibiade](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/alcibiade/32/4284_2.png) [@Alcibiade](https://qa.fmod.com/u/Alcibiade)\
**Post date:** [March 9, 2021, 12:45am UTC](https://qa.fmod.com/t/set-3d-parameters-of-an-event-started-via-command-event/16849/1 "2021-03-09T00:45:33Z")

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Hi,  
Is there a way to set 3D parameters (with game data) of an event that has been started via a command instrument? I guess not, but I ask anyway!

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**Author:** ![joseph](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/joseph/32/264_2.png) [@joseph](https://qa.fmod.com/u/joseph)\
**Post date:** [March 9, 2021, 1:13am UTC](https://qa.fmod.com/t/set-3d-parameters-of-an-event-started-via-command-event/16849/3 "2021-03-09T01:13:58Z")

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Yes, it is possible.

Whenever an event is created by a command instrument, it generates a [`FMOD_STUDIO_EVENT_CALLBACK_START_EVENT_COMMAND`](https://www.fmod.com/resources/documentation-api?version=2.1&page=studio-api-eventinstance.html#fmod_studio_event_callback_type) callback, with the new event instance as an argument. If you listen for this callback and capture the argument, you can use it to address the event instance thereafter.