If i want to eat more protein, must i increase all amino acid input
I would answer yes to this question. And the increase in protein should be an all around protein intake, with food.
Why I say this, is that you can not really increase muscle mass just by increasing the amino acids. When you train, you are ripping muscle cells (depending on the intensity of training) if you push the weights past your comfort zone and hurt the next day kind of training. And the most important thing is repair/recovery. So you supply ample digested amino acids into the blood stream, but you will need vitamins -and cofactors to help the repair enzymes work - this is where all the other nutrients in food can help out.
Plus when you rip your muscle cells and release the cells stuff inside, your body can recycle it for the repairs - you will only need just a little bit more of everything to repair the muscle cell which will grow in size to repair and make the cell ready to take on more stress. How much more? depends on how well you recycle and what nutrients are available at the time of your own repair.
That is why I said get a good basic foundation of what you need to keep growing. Then when you stall/plateau, then increase something in food (tofu, quinoa, or tempeh - they all have varying amounts of amino acid ratios) and see how your body responds.
Now, if you are working out, and not pushing, and going for endurance, then you are only using the muscle and repair is easy to do and your body can recycle most of it to repair. Fuel is then important for this kind of training.
Sleep is also a requirement for release of growth hormone, which is awesome for repair/recovery.
My massage therapist also tells me that massage is good for releasing growth hormone.