Some Useful Tips:

- To grab an object the key is G(you can move them on the axis by pressing x,y or z after pressing G)

- To pan the camera hold middle mouse button

- You can switch between viewport and edit mode by pressing tab(Make sure you have an object selected before going into edit mode)

- you can scale an object by pressing S (click X,Y or Z after clicking s to scale on that axis)

Simple key