When using a setup similar to the one described above, you might want to use the information in templates such as send-to-device and save-to-disk. Calibre 0.7.48 has a new template function to faciliate this. For example, you can slice off the first part of a hierarchy and add it to the save path. Using plugboards, you could add it to the title or what-have-you.
Taken from the calibre template language manual (
http://calibre-ebook.com/user_manual/template_lang.html, single-function mode):
subitems(val, start_index, end_index) – This function is used to break apart lists of tag-like hierarchical items such as genres. It interprets the value as a comma-separated list of tag-like items, where each item is a period-separated list. Returns a new list made by first finding all the period-separated tag-like items, then for each such item extracting the start_index-th to the end_index-th components, then combining the results back together. The first component in a period-separated list has an index of zero. If an index is negative, then it counts from the end of the list. As a special case, an end_index of zero is assumed to be the length of the list.
Examples:
Assuming a #genre column containing "A.B.C":
{#genre:subitems(0,1)} returns "A"
{#genre:subitems(0,2)} returns "A.B"
{#genre:subitems(1,0)} returns "B.C"
Assuming a #genre column containing "A.B.C, D.E":
{#genre:subitems(0,1)} returns "A, D"
{#genre:subitems(0,2)} returns "A.B, D.E"