Don't know if these has been suggested, if so I apologize in advance.
if you have a long list of keywords the Meta tags tab only offers a very small textbox to enter/copy them into. I would love to have a larger textbox. Maybe something that is resizable or at least some ability to scroll through the boxes content.
Unless my testing is wrong, it seems that Globally set Meta tags are completely ignored if there are Page Specific keywords set in the Page Properties dialog. I would like to suggest an option checkbox in the Page Properties to "append" or "concatenate" to any Global meta tags that have the same Name.