How to add "nab-path-selected" class to clevyr-nav

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There have been 2 questions in the support page for this plugin over the past year but not even an acknowledgement has been made by the dev.

Can anyone help figure out how we might go about adding the nav-path-selected class to this plugin. With out this, this plugin is useless to me and I'm sure others who have bought it. Out of all the 80+ sites iv created iv never NOT needed to be able to style the nav-path-selected.

this plugin does not use the standard auto nav block and so im unfamiliar with what i would need to edit. But im sure someone out there can help

I probably need to edit something in this piece of code.

<li class="<?php if($index == 0){ echo 'first '; } if($index == $size-1){ echo 'last '; } if($c->getCollectionID() == $cnPage->getCollectionID()) { echo 'nav-selected '; } echo $c->cPointerExternalLink == '' ? $this->slugify($cnPage->getCollectionName()) : $cnPage->getCollectionHandle(); ?>">


any thoughts would be greatly appreciated.
Thanks

ecomatt