Quite a lot.
- Look in the directory and install stuff.
- Read the headlines in every section in the documentation; it won’t take long to read the headings, find things the pique your interest, and read those sections.
I suspect that will increase what you realise and can do with drafts by a few orders of magnitude, and it will still be specific to you. Otherwise, the likelihood is that you will get recommendations from everyone who uses Drafts for 95% of the functionality and it isn’t all as equally useful to everyone.
Hope that helps.