PJ2, someone other will need to give you the definitive answer.
Looking back at my notes I both see and remember that MC with associated Recall / Sys Indication press-pad only served for failures from the overhead panel.
L/G lights are in forward field of vision hence they wouldn't be covered.
Standing by for someone with active knowledge...
PS: Here's some text retrieved from Sys description of Warning system taken from SmartCockpit website.
Master Caution Lights
Two MASTER CAUTION lights illuminate when any caution occurs outside the normal field of vision of the flight crew. The lights remain illuminated as long as the caution condition exists, or until the crew resets the system. Pushing either MASTER CAUTION light extinguishes both lights and resets the master caution system for further cautions. Pushing either annunciator light panel recalls all existing fault annunciations.
A single fault in certain redundant systems--or some simple faults--do not illuminate the MASTER CAUTION or system annunciator lights. These faults, however, are stored in the master caution system. Pushing the system annunciator recalls the single fault on the system annunciator panel.