How to get to Craft menu?

1. First open your inventory with the default button "Q".
You will see the Craft button at the bottom right of it.

The inventory looks like this:
The Craft         Invent11


2. Click the "Craft" button then the combination bar will appear.

The Craft         Invent12


3. Click on the resource you want to insert. In the example this will be a log.

The Craft         Invent13


4. To view the result click on the magnifying glass

The Craft         Invent14

5. Then you simply need to click on what you want to craft.

Try different combinations to get different results.