Basics

Question 1

Paste and Indent

Answer 1

⌘-Shift-V

Question 2

Switch to left-adjacent tab

Answer 2

⌘-Option-Left

Question 3

Switch to right-adjacent tab

Answer 3

⌘-Option-Right

Question 4

Save-as

Answer 4

⌘-Shift-S

Question 5

Toggle side-bar

Answer 5

⌘-K-B

Question 6

Larger font

Answer 6

⌘-+

Question 7

Smaller font

Answer 7

⌘ and -

Question 8

Insert line after

Answer 8

⌘-Return

Question 9

Insert line before

Answer 9

⌘-Shift-Return

Question 10

Close tab

Answer 10

⌘-W

Question 11

Close window

Answer 11

⌘-Shift-W

Question 12

Move line/selection up

Answer 12

⌘-Ctrl-Up

Question 13

Move line/selection down

Answer 13

⌘-Ctrl-Down

Question 14

Select line - repeat to keep selecting

Answer 14

⌘-L

Question 15

Select word - repeat to keep selecting further occurrences

Answer 15

⌘-D

Question 16

Soft undo; jumps to your last change before undoing change when repeated

Answer 16

⌘-U

Question 17

Wrap selection in html tag

Answer 17

Ctrl-Shift-W

Question 18

Jump to closing/opening parentheses

Answer 18

Ctrl-M

Question 19

Select all content of parentheses

Answer 19

Ctrl-Shift-M

Question 20

Comment line/selection (toggle)

Answer 20

⌘-/

Question 21

Block comment line/selection (toggle)

Answer 21

⌘-Option-/

Question 22

Quick-open files by name

Answer 22

⌘-P

Question 23

Open last-closed tab

Answer 23

⌘-Shift-T

Question 24

Split into two-columns

Answer 24

⌘-Option-2

Question 25

Revert to single column view

Answer 25

⌘-Option-1

Question 26

Set to grid-view

Answer 26

⌘-Option-5

Question 27

Move file to specified group (1 thru 4)

Answer 27

Ctrl-Shift-number

where number is 1 - 4

Question 28

Jump to group (1 thru 4)

Answer 28

Ctrl-number

where number is 1 - 4