Selecting text on focus - Agentry Integral Number field

Hi;

I am working on SAP Work Manager 6.0 using Agentry 6.1.3. On one of my edit transaction screens, I am using an Integral Number field to capture numeric values, I have noticed that by default when the edit screen loads, this field always contains the number 0. Is there a way of getting rid of this zero? Or maybe a way of selecting all the text on this field when the focus is set to it, such that all the user does is overwrite the zero when they type?

Any suggestions would be appreciated!

Thanks and Regards;

Sizo Ndlovu