No problem, Gigabye. I have time, and these requests aren't hard. Anyway, for your changes.
This is the standard kobold body:
[BODY:HUMANOID_NECK:2EYES:2EARS:NOSE:2LUNGS:HEART:GUTS:ORGANS:HUMANOID_JOINTS:THROAT:NECK:SPINE:BRAIN:SKULL:5FINGERS:3TOES:MOUTH:TONGUE:FACIAL_FEATURES:TEETH:RIBCAGE]
They already have three toes to a foot. To get your changes, switch 5FINGERS to 3FINGERS and add a TAIL part. The floppy ears will be a bit trickier, but it's not too complicated. We need to make a new body part. This is the default ear:
[BODY:2EARS]
[BP:R_EAR:right ear:STP][CONTYPE:HEAD][HEAR][SMALL][RIGHT][CATEGORY:EAR]
[DEFAULT_RELSIZE:15]
[BP:L_EAR:left ear:STP][CONTYPE:HEAD][HEAR][SMALL][LEFT][CATEGORY:EAR]
[DEFAULT_RELSIZE:15]
You want the ears to be bigger and referred to as floppy, right? So we can make a new type of ear. The name is flavor, RELSIZE controls the ear size.
[BODY:2FLOPPYEARS]
[BP:R_EAR:floppy right ear:STP][CONTYPE:HEAD][HEAR][SMALL][RIGHT][CATEGORY:EAR]
[DEFAULT_RELSIZE:60]
[BP:L_EAR:floppy left ear:STP][CONTYPE:HEAD][HEAR][SMALL][LEFT][CATEGORY:EAR]
[DEFAULT_RELSIZE:60]
And here we go. These ears are "floppy" and also 4 times bigger than normal ears. Put BODY:2FLOPPYEARS at the bottom of body_default, and change the kobold body plan to match. This will be their new design.
[BODY:HUMANOID_NECK:2EYES:2FLOPPYEARS:NOSE:2LUNGS:HEART:GUTS:ORGANS:HUMANOID_JOINTS:THROAT:NECK:SPINE:BRAIN:SKULL:3FINGERS:3TOES:MOUTH:TONGUE:FACIAL_FEATURES:TEETH:RIBCAGE:TAIL]
You'll want to test them in the arena to see if I made any mistakes.
*Edit:Clarifying things.