Think I can guess at why this doesn’t seem to be supported but here we go…
I’ve got 2 category groups going for different purposes, let’s call them group 1 and 2.
I’m using group 2 as a means to many:many relationships output via related_categories_mode (I would prefer not to have to resort to using Playa).
But within the related categories output I’d like to output a category being used in group 1.
So I tried some code as follows…
{exp:channel:entries channel="grades" related_categories_mode="yes" custom_fields="yes"}
{if count == 1}
<section id="grades" class="grades">
<h2>Related grades</h2>
<p> <ul><br />
{/if}<br />
<li><a href="http://{title_permalink=grades}">{categories show_group="1" limit="1"}{category_name}{/categories} _Alloy <span class="model">{grade_model}</span></a></li><br />
{if count == total_results}<br />
</ul><br />
</section><br />
{/if}<br />
{/exp:channel:entries}But the categories variable pair doesn’t work inside related categories mode—I guess because of performance issues?
Is there any other way I could get at the group 1 category in this context? Maybe I should try a query tag. Or I guess I could create a custom field that duplicates the group 1 category choice.