You can change all of these options in My Settings>Controls from the game GUI.
WASD to move Forward – Left – Back and Right
Press E when you see the chevron appear to interact with Non-Playing Characters (NPCs)
Press E to pick up items and to press buttons also.
Press the Left Mouse Button (LMB) to punch with the right hand or to fire a weapon.
Hold down the Right Mouse Button (RMB) to aim a gun.
Hold Down X and press LMB to use Left Hand items and weapons.
Hold F and press LMB to Kick.
Press tab to go in and out of 1st person view.
Press Q to switch items in your Left Pouch/Hand.
Use the scroll wheel switch items in your Right Pouch/Hand.
Press C to Crouch.
Hold down Shift and W to Run.
Press Space Bar to Jump.
Click the Menu gui to expand out or hide the various buttons
Compass – The compass on your ship uses A-F-P-S for Aft, Fore, Port and Starboard.
Press Alt +P to take a screenshot. You can find the screenshots here: C:\Users\YourName\AppData\Roaming\AlterVerse\screenshot
Press ctrl +H to hide the HUD.
Press E to dismount from a chair.
Press ctrl +K to respawn on the bridge if you get stuck somewhere or just need to get back quickly.