# Customize for Mobile device

**URL:** https://community.mp3tag.de/t/customize-for-mobile-device/10849
**Category:** Support
**Created:** [September 23, 2010, 4:33pm UTC](https://community.mp3tag.de/t/customize-for-mobile-device/10849 "2010-09-23T16:33:57Z")
**Posts on this page:** 1
**Showing post:** 4

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### Author: ![dano](https://community.mp3tag.de/user_avatar/community.mp3tag.de/dano/32/6_2.png) [@dano](https://community.mp3tag.de/u/dano)
#### Post date: [September 24, 2010, 1:11pm UTC](https://community.mp3tag.de/t/customize-for-mobile-device/10849/4 "2010-09-24T13:11:39Z")

</div>

You must create an action to use this string on a tag field.  
See [/t/967/1](https://community.mp3tag.de/t/967/1)

_Action type:_ **Format value**  
_Field:_ **TITLE**  
_Format string:_ **$num(%track%,2) - %title%**

Are all your titles "Genesis 1" ? (Too bad you cut the screenshot there)

The reverse might be even better:

%title% - $num(%track%,2)

so you get Genesis 1 - 01, Genesis 1 - 02, ...

Use the tracknumber wizard [Ctrl+k] first if you don't have proper track numbers.

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_[View the full topic](https://community.mp3tag.de/t/customize-for-mobile-device/10849)._