My Catalog creation is no longer being made available in 'Periodical' format for my KDX. I have the profiles set for Kindle DX and the catalog option set for Mobi but I can't seem to get the catalog to show in any way but alpha. I'm running calibre 7.35 on a Win7 PC.
While I only have about 200 ebooks it makes the catalog lookup very tedious in alpha only form. I know I must be doing something wrong but all the posts indicate I'm set as you have told us.
Thanks for your help.