# Another quick question (RE: copying portions of a tag field)

**URL:** https://community.mp3tag.de/t/another-quick-question-re-copying-portions-of-a-tag-field/13096
**Category:** Support
**Created:** [February 15, 2012, 12:20am UTC](https://community.mp3tag.de/t/another-quick-question-re-copying-portions-of-a-tag-field/13096 "2012-02-15T00:20:40Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![specialk](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/s/ec9cab/32.png) [@specialk](https://community.mp3tag.de/u/specialk)
#### Post date: [February 15, 2012, 5:07am UTC](https://community.mp3tag.de/t/another-quick-question-re-copying-portions-of-a-tag-field/13096/2 "2012-02-15T05:07:39Z")

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To add to my post:

Basically I want to take a subset of data written into the "comments" field (specifically 'written-by' data gathered from Pone's Discog's script) and copy it to the composer field.

Here is a post that deals with copying...

[Regular Expressions](https://community.mp3tag.de/t/521/47)

...but I only want a portion of the data.

The typical discogs additional credits format might have something like:

Keyboards - Person 1, Person 2  
Producer - Person 1, Person 2  
Written-by - Person 1, Person 2, Person 3

I just want to take the "Written-by" data and copy the people over to the "composer" field. I can separate them with a semi-colon using an additional action.

I thought I saw this kind of a post somewhere, but I still cannot find it.

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_[View the full topic](https://community.mp3tag.de/t/another-quick-question-re-copying-portions-of-a-tag-field/13096)._