Sorry, I am confused about what you are doing. When you say "User Category", what do you mean? Is that a custom column, or really a user-defined category in the tag browser? What is a sub-category?
If:
- genre is a custom column (assume the lookup name is #genre)
- the column name is the "category",
- the column value is the sub-category,
- you use automatic metadata management (good idea with the T1)
then the tweak "Specify renaming rules for SONY collections" will solve your problem. In this example I assume that you have changed your T1 setup to build categories from series and #genre, but not from tags. Set the tweaks as follows:
Code:
sony_collection_renaming_rules = {'series':'Series'}
sony_collection_name_template = '{category:||: }{value}'
The first tweak tells calibre to use the category name 'Series' for the series column. The category name of a standard field is normally empty. The second tweak puts the category name in front of the category value, separated by a colon.
Regarding importing collections back from the device, there is no way to do that.