If the 'degree of control' means up/down ... you can set the gravity to negative. But i suppose you really want angles.
Using the plugin you could give each sprite a 'helper object' that gets positioned on a distance and with the right angle. And make one source, the other target, although i dont know if they are personal in the plugin. Dont know if that works.
Besides that. Using regular physics for that is not really difficult. Dont need vectors. Gravity is just and no more then a force applied every tick. So, if you apply a force under an angle every tick, you created gravity.