I'm baaaaack.....!
Ok, so in MineCRAFT, you can place different orientations of slabs by clicking the top or bottom half of the block. However, in MineTEST (with mods), there can be 6 different orientations of slabs (top, bottom, left, right, front, back), so you can't just use this method. Here's my idea for how to place slabs in different positions without weird tools and stuff.
When you're holding a slab and looking at a block, instead of the normal square outline around the block, it will look like this:
____
|\ _ /|
| |_ | |
|/__\|
Sorry for the crappy text image, my normal image uploading site is blocked at school, and imgur sucks.
Basically, it will be divided into 5 sections, Top, bottom, middle, left, and right. For example, if you click the top section, it will make a top slab, like this: |**|. (front view, ** is the slab). If you click the middle, it will place a slab that is flat against the block: |;| | (side view) ( |;| is the slab)
I'm not sure if this is possible to do, but if it is, it will make slab placing a lot easier :)
You could use a similar method to place stairs, by dividing the block into 9 squares, and ignoring the middle (or extending the outer squares into it to fill it. The corners place stairs that are parallel to the wall (if this is confusing, wait until I get an image)
for now:
____
|_|_|_|
|_|_|_|
|_|_|_|
Also for half-slabs (1/4 of full block) IDK what the're called, you could use the same method.
And micro blocks (1/8 of full) are easy, just 4 squares.
But honestly, I don't really like the whole partial block system. Wouldn't it be better if there was a crafting-table type thing, but with 8 slots (dividing the block into 8 microblocks.) You would put blocks in the slots that you wanted to have filled in, and have.... ok I'm getting ahead of myself. I have to get some pictures first!