# Custom Action

**URL:** <https://community.mp3tag.de/t/custom-action/17396>\
**Category:** Support\
**Created:** [November 23, 2015, 6:03am UTC](https://community.mp3tag.de/t/custom-action/17396 "2015-11-23T06:03:19Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![markusof](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/m/f04885/32.png) [@markusof](https://community.mp3tag.de/u/markusof)\
**Post date:** [November 23, 2015, 6:03am UTC](https://community.mp3tag.de/t/custom-action/17396/1 "2015-11-23T06:03:19Z")

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I would like a custom action to Backup my fields to other fields in one swoop  
I would like the $if statements added later

I wan to backup all tags before I play with them with the ability to get them back

I tried the guess, but it doesn't work, it actually works on some but crashes with the list show in file attachment.

thanks

![](https://community.mp3tag.de/uploads/default/original/2X/4/4ec990139e17d417c869fa66d46ed6864ab357f7.jpg)

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**Author:** ![ohrenkino](https://community.mp3tag.de/user_avatar/community.mp3tag.de/ohrenkino/32/4843_2.png) [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)\
**Post date:** [November 23, 2015, 6:12am UTC](https://community.mp3tag.de/t/custom-action/17396/2 "2015-11-23T06:12:43Z")

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> [@JeffKY](#):
>
> I would like a custom action to Backup my fields to other fields in one swoop  
> I would like the $if statements added later
> 
> I wan to backup all tags before I play with them with the ability to get them back
> 
> I tried the guess, but it doesn't work, it actually works on some but crashes with the list show in file attachment.
> 
> thanks

Use a different type of action to copy the contents of one field to another. Use "Format value"  
e.g. for HPATH:  
Format string: %\_path%

"Guess value" distributes to contents of one source field to other target fields and removes the information from the source field. You wouldn't want that for a backup.

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**Author:** ![DetlevD](https://community.mp3tag.de/user_avatar/community.mp3tag.de/detlevd/32/123_2.png) [@DetlevD](https://community.mp3tag.de/u/DetlevD)\
**Post date:** [November 23, 2015, 8:13am UTC](https://community.mp3tag.de/t/custom-action/17396/3 "2015-11-23T08:13:09Z")

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> [@JeffKY](#):
>
> I would like a custom action to Backup my fields to other fields in one swoop ... I tried the guess, but it doesn't work, it actually works on some but crashes with the list show in file attachment. thanks

Begin Action Group **MY\_BACKUP\_ACTION** 

Action #1  
_Actiontype 7:_ **Import tag fields (guess values)**  
_Source format \_\_:_ **%COMMENT%**  
_Guessing pattern:_ **%HCOMMENT%**  
End Action Group **MY\_BACKUP\_ACTION** (1 Action)  
... or ...

 Begin Action Group **MY\_BACKUP\_ACTION** 

Action #1  
_Actiontype 5:_ **Format value**  
_Field \_\_\_\_\_\_:_ **HCOMMENT**  
_Formatstring:_ **%COMMENT%**  
End Action Group **MY\_BACKUP\_ACTION** (1 Action)

 

DD.20151123.1013.CET

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<div class="post-metadata">

**Author:** ![system](https://community.mp3tag.de/uploads/default/original/2X/c/ce7035d426cb755a7916793326d23b465222a407.png) [@system](https://community.mp3tag.de/u/system)\
**Post date:** [February 9, 2026, 12:25pm UTC](https://community.mp3tag.de/t/custom-action/17396/4 "2026-02-09T12:25:58Z")

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Closed on February 9, 2026, 12:25pm UTC