Keep pressing 'Ctrl+B' until the Decorations Layer is On.
Keep pressing 'N' until Newtonian Gravity is On.
Keep pressing 'U' until Ambient Heat is Off.
The buttons for manipulating the laser are the words made of PSCN located in the section titled 'Control Panel'.
Press the buttons using the element 'SPRK' (found in the 'Electronics' tab to the right) to activate/deactivate them.
Don't press the buttons too quickly.
WASD and Arrow Keys can be used to control movement:
W - Portal Up
S - Portal Down
D - Swerve Range Increase
A - Swerve Range Decrease
Top Arrow = Angle Up
Bottom Arrow = Angle Down
Left Arrow = Swerve Toggle
Right Arrown = Scatter Toggle
Proton mode is very buggy with portals in vanilla TPT as of version 89.2. I recommend using Jacob1's Mod when wanting to use both simultaneously. Or go beg Simon to release an update and hope he will. Otherwise, simply move the mover away from the proton beam before proceeding to turn the Portal Mover off. As of TPT v90.2, protons now go through portals properly, so Proton mode should work okay-ish... In the rare occasion that the portals' channels suddenly get changed by protons, please reload the save.
Photon Colour toggle buttons sometimes have to be pressed twice to activate/deactivate them.
Or Filter is used in conjunction with Set Filter to mix Photon Colours. Set must be turned on for Or to have any effect.
Portal Mover must be within the Swerve range limits before Swerve is turned on.
Edit: Jeez, why must the wysiwyg editor be so annoying? This wasn't how I saw my bullet points!