Inputting numbers?

I've no doubt it is a very powerful program but it seems a fundamental method of user inputting has been omitted. It shouldn't need a page full of code, as seems to be required from the various work rounds that people have produced, and is above my level of experience I might add, to create a method of inputting a simple number. It would appear that BMax is not for entry level programmers, for instance you couldn't do the old hello world program and ask for user input to replace the 'hello world' text!!