Is there an option to move rows up/down on a button click. Rather than just drag & drop?
Yep, there is an API for moving rows, you can place a buttons ( on the page or in each row ) and call the related API from onclick handlers
Does this work with in branches on a treetable?
moveUp, moveDown will work for plain data sets only, but there is move
api, which will work for all components, including TreeTable