recurring:XY help text explains keywords X={evt,cal,any} Y={ori,dup,all}

Template/config/show.php

@@ -46,7 +46,7 @@
         <p class="form-help"><?= t('"Due this month" and "Around this month" (duemonth: / aroundmonth: keywords).') ?></p>
 
         <?= $this->form->checkbox('organon_tweaks_recurring_filters', t('Add recurring filters to every board'), 1, isset($values['organon_tweaks_recurring_filters']) && $values['organon_tweaks_recurring_filters'] == 1) ?>
-        <p class="form-help"><?= t('"All recurring", by system (event/calendar) and by role (templates/duplicates), via the recurring: keyword.') ?></p>
+        <p class="form-help"><?= t('Adds recurrence bookmarks. Also a recurring:XY search keyword -- X = evt/cal/any (native/calendar/both), Y = ori/dup/all (template/duplicate/both). Example: recurring:evtori.') ?></p>
     </fieldset>
 
     <div class="form-actions">