How can I customize the default attribute settings ?

Hi,

I have used another XML editor for making DITA topics and now I am planning to use FrameMaker XML Author 12 for DITA editing.

After testing, I checked for the DITA sources output from FrameMaker XML Author and found that the following attributes are added.

- [frame="all"] added in <table> tags

- [width] and [height] specified in <image> tags

- [outputclass="fm:xxx"] attribute in <xref> tags

Are there any settings to disable or change these attributes?