For hoisting and dropping the kite, used to stay on my knees near the back of the tramp facing forward and steer with my feet on the crossbar. Would drop the traveller down too.
For gybing, have both sheets in the one hand. Hard to explain, but I would hold it so the old sheet was easy to flick out and then you can pull through on the new sheet as you gybe. By using this technique I could keep the old sheet tight going into the gybe and I wouldn't have to pull too much for the new sheet. As you crossed over the tramp through the gybe you could easy change over hands too.
Probably confused you now.