I have created a shortcode and TinyMCE plugin for a shortcode. Click the button, it inserts `[my-shortcode][/my-shortcode]`. But it adds the code and then the editor cursor is after the closing shortcode. I want to type content inside this shortcode, so I need to click the cursor between the `][` every time. Is there a way to position the cursor in the button js so that when the shortcode is added, the cursor is in my desired spot? Yes, I have also set the shortcode to wrap text if there is an active selection, but what if I want to add content _after_ adding the shortcode?