Controls

Moving

After loading into your level, you can move the camera with W,A,S,D and go up and down with E and Q. Hold SHIFT while moving the mouse to look around. Scrolling your mouse-wheel while holding SHIFT changes your camera speed.

Selecting

Select something with LMB, add or remove something from the current selection with RMB. You can box-select by holding CTRL and RMB while moving your cursor and box-remove from the selection with ALT+RMB.
Copy and paste your current selection with CTRL+C and CTRL+V, or delete it with DELETE.

Transform

Move or rotate your current selection using the widgets shown on screen. Toggle between them using R and T. Holding ALT while moving a selection will create an exact copy of it.
Grab your current selection with MMB and move it around with your cursor, place it by pressing LMB or cancel the grab with RMB.
Enabling the “Surface Move” with CTRL-G, option will snap your selection to the grid while grabbing. The grid size can be changed by pressing PAGE-UP and PAGE-DOWN, or by manually typing it in the toolbar or editor options.

Misc

Save your level with CTRL+S or with the Save button in the editor panel. Toggle between Playtest and Editing mode using F10. To completely reset the level and reload the editor, simply press ESC and Restart Game.

Default Keybinds

Function	Keybind
Copy Selection	CTRL+C
Paste Selection	CTRL+V

All those keybinds, along with lots more can be viewed and customized in the “Input” section in the BeardLib Editor Menu Options.