This case you should create a new position, please follow this:
1.Open templatesja_community_plusblocksheader.php, add:
<?php if($this->countModules('jf-select-lang')) : ?>
<div id="jf-select-lang">
<jdoc:include type="modules" name="jf-select-lang" />
</div>
<?php endif; ?>
before
<?php if($this->countModules('search')) : ?>
2. Open templatesja_community_plustemplateDetails.xml, inside <positions>, add:
<position>jf-select-lang</position>
3. Open templatesja_community_pluscsstemplate.css, add:
#jf-select-lang{
/* your desired style*/
}
4. Go to admin > modules manager, assign joomfish language choose to the position “jf-select-lang”.