FYI, if there is an existing suggestion then it is generally more important to add another supportive reply to that topic. Many individual topics carry a lot less weight than one long and consistent one that keeps returning to the Latest view.
The oldest topic requesting this appears to be from August 2014 and it’s only five posts and a miniscule 7 likes (including the like I added today). This is hardly likely to impress the GlassWire team that this should be developed.