file -> reset, will reset the UI. make sure no files are open as they are closed
Q is universal "drop tool" key (hum wasnt it space bar previously?)
CTRL-SPACE pie menu
W move tool
E rotate tool
R scale tool
M material selection (to all selected polygons)
L loop selection. Select couple of polygons/edges and hit L
SHIFT-ARROW_UP enlarge loop selection? :)
3 polygon mode
CTRL-S save
N new item, mesh layer
SHIFT-A fit (to view) selected
CTRL-W close project
CTRL-SHIFT-W close all projects
H - hide selected polygons/edges/vertices
SHIFT-H - hide unselected
U - unhide
F - invert?
BACKSPACE - remove vertice/edge/polygon
G - jump to where mouse pointer is