Need a clear presentation of the possibilities and if possible how to combine them.
Something like the menu above, from Erin Jang.
Also Avery Andrews has written quite a bit about Glue Semantics. In particular he has a 64-pages long tutorial entitled "Yet Another Attempt to Explain Glue", dated Mar 13, 2010 which one wonders might render useless my attempt here. But maybe not, as I expect his tutorial is written for linguists, a very different audience.