I'm designing custom component library for my project and I'd like to create custom naming subset for my custom parts.
When ever I create custom part the default naming order is U$1, U$2 etc., when I add them to my projects later on. I'd like some custom part types to be listed as E1, E2, ... or some along with other resistors like R1, R2, etc. How to configurate parts in my custom library to belong to some specific letter group?