| ⌘T | go to file |
| ⌘⌃P | go to project |
| ⌘R | go to methods |
| ⌃G | go to line |
| ⌘KB | toggle side bar |
| ⌘⇧P | command prompt |
| ⌃ ` | python console |
| ⌘⇧N | new window (useful for new project) |
| ⌘L | select line (repeat select next lines) |
| ⌘D | select word (repeat select others occurrences in context for multiple editing) |
| ⌃⇧M | select content into brackets |
| ⌘⇧↩ | insert line before |
| ⌘↩ | inter line after |
| ⌃⇧K | delete line |
| ⌘KK | delete from cursor to end of line |
| ⌘K⌫ | delete from cursor to start of line |
| ⌘⇧D | duplicate line(s) |
| ⌘J | join lines |
| ⌘KU | upper case |
| ⌘KL | lower case |
| ⌘ / | comment |
| ⌘⌥ / | block comment |
| ⌘Y | redo or repeat |
| ⌘⇧V | past and ident |
| ⌃ space | autocomplete (repeat to select next suggestion) |
| ⌃M | jump to matching brackets |
| ⌘U | soft undo (movement undo) |
| ⌘⇧U | soft redo (movement redo) |
| :w | save file |
| j | move cursor up one line |
| k | move cursor down one line |
| h | move cursor one position right |
| l | move cursor one position left |
| e | move cursor to the end of word |
| 0 | move cursor to beginning of line |
| ^ | move cursor to frst non-whitespace character on the line |
| $ | move cursor to end of line |
| ⇧h | move cursor to the first line of screen |
| ⇧m | move cursor to the middle of the screen |
| ⇧l | move cursor to the bottom of the screen |
| i | insert before cursor |
| ⇧i | insert at the beginning of current line |
| a | append after cursor |
| ⇧a | append to the end of the current line |
| o | insert on a new line below |
| ⇧O | insert on a new line above |
| r | overwrite current and return to command mode |
| ⌘⇧A | select content into tag |
| ⌘⌥ . | close tag |
| ⌘F | find |
| ⌘⌥F | replace |
| ⌘⌥G | find next occurrence of current word |
| ⌘⌃G | select all occurrences of current word for multiple editing |
| ⌘⇧F | find in files |
| ⌘⌥1 | single column |
| ⌘⌥2 | two columns |
| ⌘⌥5 | grid (4 groups) |
| ⌃[1,2,3,4] | focus group |
| ⌃⇧[1,2,3,4] | move file to group |
| ⌘[1,2,3…] | select tab |
| ⌘F2 | toggle bookmark |
| F2 | next bookmark |
| ⇧F2 | previous bookmark |
| ⌘⇧F2 | clear bookmarks |
| ⌘K space | set mark // ⌘K; for me |
| ⌘KW | delete from cursor to mark |
| ⌘KA | select from cursor to mark |
| ⌘KG | clear mark |
If you haven't already seen or checked out CheatSheet for Mac give it a look http://www.grandtotal.biz/CheatSheet/
It allows you to hold the command key and see all shortcuts for the app you are in