Thicken with subdivision along z axis

[DNorman]

Forgotten tools by Stan_Pancakes can do this with the connect spread option. (selecting all the faces you wish to subdivide)

Forgotten tools

Add-on updated to v0.4.0 (see changes below). Over the years I’ve had various scripts and snippets accumulating on my hard drive. As I’ve been away from Blender for quite a while, they became forgotten, and now I’m slowly gathering them again, fixing up for 2.8x and accumulating in one add-on. Hence the name, Forgotten Tools. Which I think fits it nicely, since some of the additions you’ll find in it have been sorely missing from Blender as well. This initial release will be small, adding a f…