Solution for pastetext and pasteword:
edit dataobject_manager\code\simple_tinymce_field\SimpleTinyMCEField.php
and add paste plugin in 6th line
private static $default_plugins = "safari,paste";
so it will look like this
next You have to add patetext or/and pasteword in your _config.php or $default_buttons
additionaly You can add
paste_auto_cleanup_on_paste : true,
paste_remove_spans: true,
paste_remove_styles: true,
in buildJS() function in SimpleTinyMCEField.php so it will remove some unnessecary code during paste.