Forgot this:
If I insert a table using width=100%
and after mark the table and drag the table marking
horizontally then the width of table is set in pixels.
If I only enabled percent in the width dropdown for table
and cell I would also not want width in pixels to be
inserted if I change table width with the mouse. If possible
then insert width in percent relative to FCKeditor width or
eventually disable changing the width using mouse, or any
other way that insert width in pixels.
Urk...
Moved from SF. Original poster: bngobngo