suggestion for speed entering

1- I have a suggestion when ordering an order consisting of 5 orange juice and the code for orange juice is 1000. I hope that when entering it, use the numbers on the keyboard by following 5*1000 to show me 5 orange juice like Chromis Boss program.

2- When setting the cost price for a product at $3 and the selling price at $10 and activating the option to allow price adjustment when selling and when adjusting the price by less than $2 (cost price) the operation is rejected or alerted that you are selling at a price lower than the cost at a loss.