Footprints This category is specifically about footprints. It is nested inside of the "Layout" category, as it is closely tied to it. For all issues with the actual software (import errors, etc), please post under the "software" section.
Gerbers (GerbView) If you have issues generating or viewing your gerbers, you should post about it here. Also issues with file formates or understanding what gerbers should be used for.
3D Models This category is about the 3D modeling capabilities of KiCad, including the ability to import models of the components and export models of the entire PCB for external programs.

About the Layout category [Layout] (2)
SOT23-6 or Umax-8 (MAX4644) [Footprints] (3)
Changing footprints from Pcbnew [Layout] (2)
How to draw edge cut brd circle [Layout] (5)
KiCad StepUp: a new update for FreeCAD 0.17 [Layout] (19)
Layer Alignment Target questions [Layout] (12)
Applying finishing touches to PCB ( 2 ) [Layout] (29)
Issue on creating module with .dxf import Rev 4.05 [Layout] (14)
Thermal reliefs by component size [Layout] (10)
First PCB Layout ( 2 ) [Layout] (39)
Freerouting more than 2 layers [Layout] (4)
To draw dimensions horizontally [Layout] (9)
Question on copper pour [Layout] (8)
Kicad StepUp: The Sketcher for Footprint generation [Footprints] (20)
How do I create a soldermask on a pad different to the pad itself? [Footprints] (20)
Margin or Edge.Cuts ( 2 ) [Layout] (22)
High Voltage Footprints with PCB Cutouts [Layout] (14)
To hide GND net [Layout] (17)
Protip: nicer via stitching ( 2 3 ) [Layout] (56)
How to create plated half-holes [Footprints] (5)
Trs 1/4"(6.35mm) audio socket footprint [Footprints] (5)
Is it possible to edit with relative coordinates [Layout] (15)
Filled zones not responding [Gerbers (GerbView)] (1)
Edge.Cuts and Layer alignment target [Gerbers (GerbView)] (7)
FreeCAD 0.17 and 3D STEP export [3D Models] (3)
How to layout parts first and then backfill a schematic? [Layout] (6)
Multiple identical pins internally interconnected? Pcbnew can't see it ( 2 3 ) [Layout] (47)
Overly zealous auto-scroll? [Layout] (8)
Kicad breaks while creating a new footprint [Footprints] (11)
Not able to create STEP models with StepUp and Fcad 0.17 [3D Models] (15)