With this new tool from Kitty Munson Cooper, users can use Pedigree thief to capture ahnentafels and then turn them to gedcoms. The Ancestry view in tree feature lets the user acquire specific branches before making the anentafel but unfortunately there is no delimiting feature in MyHeritage.
It would be so neat to have a wysiywg tool to grab a branch of a tree to add to an RF tree, sort of a treelet making scratchpad