Following are the solutions to some of the common form issues:
One of the most commonly requested form modifications is the ability to change the data labels and the explanatory text built into the default forms. There are several alternative ways to modify the text elements. The choice of which technique to apply depends largely on the number, and extent of the changes you wish to make.
As we saw earlier in this chapter, you can create a custom module and use the function form_alter to make changes to one or more forms. This approach is very useful where you want to make changes across several forms or if you wish to combine text changes with more extreme form modifications (for example, adding or deleting fields). However, if your goal is simply to insert new text not related to a specific field, or if you wish to modify only one form, you are probably better served by one of the other approaches outlined...