# Replace Action on Grouping tag is not working for me

**URL:** <https://community.mp3tag.de/t/replace-action-on-grouping-tag-is-not-working-for-me/18278>\
**Category:** Support\
**Created:** [September 28, 2016, 7:04pm UTC](https://community.mp3tag.de/t/replace-action-on-grouping-tag-is-not-working-for-me/18278 "2016-09-28T19:04:49Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![DHoude](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/d/74df32/32.png) [@DHoude](https://community.mp3tag.de/u/DHoude)\
**Post date:** [September 28, 2016, 7:04pm UTC](https://community.mp3tag.de/t/replace-action-on-grouping-tag-is-not-working-for-me/18278/1 "2016-09-28T19:04:49Z")

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Hi all, Mixed in key is a music analyzer and tagging program that always seems to take useful stuff away on every update. I am a DJ and I only have about 3 characters space for MIK's Energy level on my controller. In MIK 8 they now force you to write "Energy" in front of every numerical value for the Group field (in 7 they didn't force that). So my Grouping tags always look like this:

"Energy 6"

I want to strip the "Energy " including that space at the end so it just shows the number. "6"

I have tried Action "Replace", Field "GROUP", Regular exp "Energy " and With "" \<- empty

It dose not seem to do anything for me. I have tried a couple other ways but have not had any luck and now I am hoping you guys can have a look at what I am doing wrong.

Thanks for reading!

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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:** [September 29, 2016, 3:12am UTC](https://community.mp3tag.de/t/replace-action-on-grouping-tag-is-not-working-for-me/18278/2 "2016-09-29T03:12:00Z")

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> [@DJ Don](#):
>
> ...I have tried Action "Replace", Field "GROUP", Regular exp "Energy " and With "" \<- empty
> 
> It dose not seem to do anything for me. ...

See here for a list of field names: [https://docs.mp3tag.de/mapping](https://docs.mp3tag.de/mapping) (it's the help)

GROUP is none of them. Perhaps you look for ARTIST or ALBUMARTIST.  
You also can check the correct field name in the extended tags dialogue (Alt-T).

As you intend to replace a string constant ("Energy") with another one (although it is an empty string), it is not necessary to use an action of the type "Replace with regular expression" but a simple "Replace" does just fine.

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**Author:** ![DHoude](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/d/74df32/32.png) [@DHoude](https://community.mp3tag.de/u/DHoude)\
**Post date:** [September 29, 2016, 8:32pm UTC](https://community.mp3tag.de/t/replace-action-on-grouping-tag-is-not-working-for-me/18278/3 "2016-09-29T20:32:42Z")

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Awesome, thank you for the direction. Extended Tags showed that "CONTENTGROUP" is the field. I forgot the the column headers are nick names.

I greatly appreciate the direction! Thank you

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**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, 12:26pm UTC](https://community.mp3tag.de/t/replace-action-on-grouping-tag-is-not-working-for-me/18278/4 "2026-02-09T12:26:26Z")

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Closed on February 9, 2026, 12:26pm UTC