Create column "number of order playlist" and add order in filename when export covers

¿How to create column to retain number order of the plailist?

When load playlist respect perfect the order, boot need this order in a column to reuse.

¿When export cover, how to add number order of playlist to cover filename?

Action > Export cover to file >

D:\MP3\zz\cd 1$validate($trim(%ARTIST%) - $trim(%TITLE%),)

¿What need add for this?

01 - artist - title.jpg 02 - artist - title.jpg

I need order in the file name when export the covers.

Thx in advance and sorry for my bad english

See if this is what you are looking for
$num(%track%,2) - $validate($trim(%ARTIST%) - $trim(%TITLE%),)

Great advance

If you load the playlist then the tracks will be dsiplayed in the correct order, right?
If the filename has to reflect that order you may use
which produces a two-digit number.

So a filename like
$num(%_counter%,2) - %artist% - %title%

would show the layout of playlist.

If you want to go back to your old filename then rename the files
%track% - %artist% - %title%

Was this, what you wanted?

Yes when load a playlist in Mp3tag displayed correct.
If i use this sentence $num(%_counter%,2) - $validate($trim(%ARTIST%) - $trim(%TITLE%),)
The result is

I need in the filename, the same order of playlist.
Need this (example made with keyboard)

Thx in advance and sorry again for my bad english.

Get Mp3tag v2.45b then it should work with %_counter%

100% Perfect with Mp3tag v2.45b

$num(%_counter%,2) - $validate($trim(%ARTIST%) - $trim(%TITLE%),)

Please tell me a webpage to rank the support of this forum "IS MAGIC" can't believe...

Thank you very much!