hi, i have just bought your plugin and i need some help as I could have missed out your guides.
1. How can I show the entered number from 12000 to 12,000
2. How can I control the user to enter a min of 3 numbers to max of 4 number? e.g. 800 and 1385
3. Does your plugin in allow to change the core price? I do not want to have any decimals in the number.