I had a question regarding take off clearance when there are two taxiway's approaching a runway. Generally I'm always tuned into groud frequency till the hold short line and then I tell the tower that I'm ready to go. But what if in a scenario there are 3 planes ahead of me in a line and 3 planes in a line on the other taxiway for the same runway, can you contact tower earlier(Before you get to the hold short line) to be put in sequence. I've heard little bit about it, but never really knew the correct procedure to follow. Would the tower who to give permission first, or is there any procedure to let the tower know