For my own 'sake/interest', I used Rodney Hester's patched version of lld2d (LLTD), I have merged that code into TomatoUSB (Toastman-1.28.7483).
The files that have been changed have been zipped and can be downloaded at the below link:
LLTD can be turned on/off in the Admin/LLTD menu. It is off by default.
Quick note: I also used Shibby's SNMP work as a guide for the merge… I thought his inclusion of SNMP in specific builds made sense, so LLTD can be found in those same build types (pretty much 'ext' and 'bigger')…
Toastman, feel free to merge this into your code. Please note that as I'm not familiar with this code, I won't be providing support for it. However it is working perfectly for me on my E3000.
If you or another dev wants to move the GUI item to another page, feel free.