delayred and delayyellow do not appear in info page

delayred and delayyellow do not appear in the info column status page
(svcstatus.sh?HOST=<hostname>&SERVICE=info).  I would expect them to appear
perhaps under Other tags, or perhaps at the top of alerting before the table
of alerts.  This is on 4.3.7.
 
192.168.4.56    Db1 # delayred=special:10 delayyellow=special:5
 
Or does delayred and delayyellow not apply to custom tests?  (If so, the
docs do not mention this.)

Kind regards, 

SebA