Bevel Mode

SHIFT+CTRL+B

Border Level

3

Chamfer Mode

SHIFT+CTRL+C

Connect

SHIFT+CTRL+E

Constrain to Edges

SHIFT+X

Cut

ALT+C

Edge Level

2

Element Level

5

Extrude Mode

SHIFT+E

Face Level

4

Grow Selection

CTRL+PageUp

Hide

ALT+H

Hide Unselected

ALT+I

Object Level

6

Quickslice Mode

SHIFT+CTRL+Q

Repeat Last Operation

; (semi-colon)

Select Edge Loop

ALT+L

Select Edge Ring

ALT+R

Shrink Selection

CTRL+PageDown

Unhide All

ALT+U

Vertex Level

1

Weld Mode

SHIFT+CTRL+W