Paint.NET :: How To Add New Menus To Menu Bar

My thoughts are that it would be nice to be able to add new menus to menu bar a Customize feature that would allow the user to place add-on pluggins such as printer+ in the File Menu, to create New Menus such as a menu in which sub menus can be created and the user can move effect and other functions into these menus, or create additional shortcuts in these sections, also be-able to delete effect and adjustment related files from within a plug-in customize mode feature, also install in new effect/adjustment/etc dll's from inside the program or disable/enable them. auto detection of multiple copies of dll's, and scan for most up to date, with user prompt to delete older or not ask again. also a text selection mask type text would be a very big benefit
 
and a selection tool similar to the Free-Form Selection tool from MS-Paint where you click in the next point you want the selection to continue to, then close with a CTRL left click or so... as without a USB Pen or Stylus device it is very difficult to do a perfect selection...
 
ability to add custom windows into "windows" menu, i.e. alternate Palettes, Alternate Tool Sets, enhanced Layers window that switches to an  Animations style display for gif and agif, etc, switches to an animated cursor, or animated icon display with play and frame as layer select, as for icon and alike, allowing different icons to be displayed in the layer list in correct size instead of all layers being same size, and all icon layers being listed by colr bit and size, etc...
 
ability to extract, modify or implant icons into dlls and executables
create or load ICL(icon libraries), create icon dlls...
 
Page preview with adjustable margin control, better ability to show true picture size when printed(reguardless of dpi) or to allow scaling, ability to print with the included print support recognition of your printer aswell as other built in print modes not provided by your printer software
 
GPU & CPU + full multi-threaded/multicore utilization and Combined processing for large size images and layers and possible resort to pagefile usage as additional last resort.