# V2.39c Suggestion: %index%
**URL:** https://community.mp3tag.de/t/v2-39c-suggestion-index/5698
**Category:** General Discussion
**Created:** [November 5, 2007, 9:05am UTC](https://community.mp3tag.de/t/v2-39c-suggestion-index/5698 "2007-11-05T09:05:14Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@chrisjj](https://community.mp3tag.de/u/chrisjj)
#### Post date: [November 5, 2007, 9:05am UTC](https://community.mp3tag.de/t/v2-39c-suggestion-index/5698/1 "2007-11-05T09:05:14Z")
Really useful would be the following Export script System placeholder:
%\_index% Current value of the index of the immediately containing loop
Also, in Help, %\_counter% would be more clearly described as
%\_counter% Current counter value (ascending from 1) of the immediately containing loop
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### Author:  [@Florian](https://community.mp3tag.de/u/Florian)
#### Post date: [November 7, 2007, 6:44pm UTC](https://community.mp3tag.de/t/v2-39c-suggestion-index/5698/2 "2007-11-07T18:44:38Z")
I don't see the difference of these two placholders. Can you give an example?
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### Author:  [@chrisjj](https://community.mp3tag.de/u/chrisjj)
#### Post date: [November 15, 2007, 2:27pm UTC](https://community.mp3tag.de/t/v2-39c-suggestion-index/5698/3 "2007-11-15T14:27:07Z")
> I don't see the difference of these two placholders.
Sorry to be unclear - by "the index" I mean the field/expression argument of $loop().
> Can you give an example?
The export script
$loop(%\_filename\_ext%)%\_counter% %\_index%
$loopend()
would output e.g.
1 myfirstfile.mp3
2 mysecondfile.mp3
I'd use %\_index% instead of having to repeat the long expression that I often have in $loop() e.g. one to find the UPC and other info from folder name.
Now I think about it, parhaps it would better for Mp3tag to allow this:
$loop($put(v,%\_filename\_ext%))%\_counter% $get(v)
$loopend()