HTML/Advanced Javascript: WYSIWYG Editor/TinyMCE Modifications for custom buttons

1) I need a button on the tinyMCE toolbar that will allow for the curser to search forward from the current position and find the next instance of xx ,where xx is a predefined string in the code. This button will be be tied to the F5 key 2) I need a drop down list that will insert into the tinyMCE area at the cursor position a predefined phrase. There will be 3 options in this dropdown. This button will be be tied to the F11 key If you want to accomplish this with buttons outside of the text area, that is acceptible but please indicate this with your bid Please indicate you can start working on project and estimated time to complete with your bid.