Collecting data from multiple selected files in one action

On rereading, it occurs to me that this gives results similar to the Mp3tag context menu commands Tag Copy (Ctrl+C) followed by Tag Paste (Ctrl+V) into the target files.

From the documentation by Sebastian_Mares:
How to Copy Whole Tags to Other Files?

Although this operation cannot be included in an Mp3tag Action, it is by nature a batch operation and one Tag Copy / Tag Paste sequence can fill hundeds of target files. And it is very simple — No export loops are needed.

The only caveat is that the sort order of the target files must be the same as that of the source files.

@7stones, have you tried these commands?