Lightroom shortcuts

LightroomShortcuts.txt

STACK
S - toggle stack
ctrl + G - stack
ctrl + shift + G - unstack
shift + S - move to the top of the stack

VIEW
Show Grid Extras - show keywords and metadata of the photo in grid
Show Badges

SHORTCUTS
Add keyword shortcut:
In the menu bar in the Library module, go to Metadata>Set Keyword Shortcut... Type in the keyword, or set of keywords, separated by commas.
In your Keyword List panel (below the Keywording panel), right-click on the desired keyword, and choose Use this as Keyword Shortcut. (You now will see a “+” to the right of it.
shift + K - add keyword 

Moving through the keyword panel
ctrl + K
ctrl + shift + K

Show orginal photo (Develop module)
\

Show only photos on grid
library filter -> right icons -> select master photo and virtual copies