[oozie] Longer input fields in workflow editor

When we currently edit a workflow step (like Java action), there are a set of fields to fill (jar name, Main class, arguments, aso.).
These fields currently occupy only about 1/3 of the screen size and the other 2 thirds are blank.

We are using quite long name so we need to scroll inside the test fields.

Is there a possibility to adapt the text field size to the screen so it fill the screen ?