This would be a great feature to have and I was surprised that it wasn't already available BUT I've been just going into the Star Atlas and moving the targeting square around to where I want it and then just clicking the GoTo button and that seems to work fine.
Generally I go to a known close star/object first then skooch the square over. Like for T CrB {The Blaze Star} I goto one of the Coronae Borealis stars then move accordingly.
Another great feature would be to be able to pin locations like a bookmark.