<CustomTag>.displayFormat

[simoncn]

You are getting this message because BoxSet is not one of the tag values that can be customized with the displayFormat option. For a list of the valid tags for this option, see the Tag formatting section of the User guide.

Where exactly do you want the customized BoxSet value to appear? If you want to see it in the BoxSet index, you can do this using indexFormat instead of displayFormat. However, you cannot use indexFormat to replace the value of an existing tag. This is explained in the Index tag formatting section of the User guide. You can work around this by using aliasTags to rename the BoxSet tags in your file to BoxSet2 when read by MinimServer, then use indexFormat with the BoxSet2 tag value, as follows:

aliasTags: BoxSet: BoxSet2
indexTags: BoxSet
itemTags: BoxSet2
tagFormat: BoxSet.indexFormat={$BoxSet2$Genre^^^ • }