My two-way database-filetags import/export process results in all files containing the iTunes compilation flag, most of which are set to empty/NULL (or 0 if that's easier), rather than simply being "absent if not 1" as is widely recommended.
How can an Action be configured to remove all such fields, leaving only those ="1"?
Also (asked elsewhere with no response)
Is there a way to "call" one Action from another?
Or flag an Action as "autorun" to run against all files loaded automatically at startup?
Or launch MP3Tag with a list of actions to run?