Tolino's use two methods for collections. One is directory based. The subdirectories of the "Books" folder will be shown as collections with whatever books are in them. These can be created with the save template in the driver. If you have collections for authors, it probably means you have the default save template, which is something like:
Code:
{author_sort}/{title} - {authors}
I have:
Code:
{#kobobookshelves}/{author_sort} - {series}{series_index:0>2s| - | - }{title}
Where "#kobobookshelves" is a custom column with the names of collections I use. That one is manually maintained.
The other type of collections are created on the device. These are stored somewhere that is not accessible when the device is connected to a PC. That means that we cannot see or change them by other methods.