tabfocus_elements

This option enables you to specify an element ID to focus, when the user pressed the tab key inside the editor. You can also use the special ":prev" and ":next" values. It will then places the focus on either the previous or next input element placed before/after the TinyMCE instance in the DOM.

Example of usage of the tab_focus option

// Move focus to specific element
tinymce.init({
...
tabfocus_elements: "somebutton"
});

// Move focus to next element in DOM
tinymce.init({
...
tabfocus_elements: ":prev,:next"
});