Cursor location in editable field on initiation (ex. default is at end of text, some may want the existing to text to be selected)
Whether or not there is a yellow highlight of field on mouseover
Whether or not "Click to edit" is displayed in empty field
Allowing single or multiple line input
If single line input only allowed: upon paste of text with carriage returns, whether a) carriage returns are changed into spaces or b) all the text after the first carriage return is removed (cut)