After 8 years using TextMate 1.x and a couple of years of reading about TextMate 2,

      a new Mac and a move to Mavericks (from Lion) have prompted me to migrate my work to TextMate 2

Welcome to the future! You’ll like it.   

      (1) in the TextMate 2 Bundles Editor there does not appear to be a way to move items, edit groups  or separators

      --- have I missed something obvious here ?

Editing is possible, but only manually, directing modifying the .plist 

This is not hard, but is not for beginners. I believe Allan will be adding UI editing once TM2 is deemed fixed enough to let creating a final UI for bundles rise up the todo list.

We’d all love to see it now :-)

      (2) I have a number of personal bundles for snippets in HTML, LaTeX, Haskell and Text

      --- using the guidance in https://github.com/textmate/textmate/wiki/FAQ 

      I placed symbolic links to my bundle files in ~/Library/Application Support/Avian/Bundles

      --- to activate them I had to delete ~/Library/Caches/com.macromates.TextMate/BundlesIndex.binary

      (there was no BundleIndex.plist) 

      --- I there no way in the interface to force a reloading of bundles ?

I place my personal bundles under git (hub and bitbucket) control, and synch them across machines that way.

That way, they live in “~/Library/Application Support/Avian/Bundles/*.tmbundle like they should