Hi romagromov,
Unfortunately, there's no settings available for the # ... # to post.
May I suggest that you may apply changes at    joomlafolder\components\com_easyblog\helpers\helper.php
if( $config->get( 'main_truncate_ellipses' ) && isset( $row->readmore) && $row->readmore )
		{
			 $row->text .= '<a href=' . EasyBlogRouter::_('index.php?option=com_easyblog&view=entry&id='.$row->id) . '>' . JText::_( 'COM_EASYBLOG_ELLIPSES' ). '</a>';
		}
 at line 1327  to  1331
Can you give it a try and update us about this?