Is there a script to merge tags from multiple tracks?

[JumpingJakStat]

I was wondering whether there was a script or Add-on that would concatenate existing tags for multiple tracks such that:
Tracks starting with :
Track 1 Comment: String1
Track 2 Comment: String2
Track 3 Comment: String3

Could be tagged as
Track 1 Comment: String1String2String3
Track 2 Comment: String1String2String3
Track 3 Comment: String1String2String3

Sorry if this question already exists or isn't clear. I'm new to the forum.
Thanks in advance for anybody who can point me in the right direction.

[MMFrLife]

You mean, for example,

1. You have 5 tracks in a project, you designate one track as the main one with the "comment" field as the target.
2. You then proceed to append the "comment" of the other 4 to the "comment" of the main track?

The only thing I can think of would involve using 2 add-ons (1 and 3 in my signature under fav scripts).

1. Use add-on #3 first to copy the "comment" of each of the 4 tracks separately to unused capable fields of the main track.
2. Use add-on #1 to append each of the 4 "comment" to the "comment" of the main track.

[Peke]

If Comment is the only one involved and case of 1+2+3+x needs to be result on all tracks then It should be very easy to make script and button to do that on selected tracks.

[MMFrLife]

You want the comment of "all" tracks to be tagged with appended comments from any other comment field in selection (no main)?

See here