Please find some useful keyword shortcuts available in Microsoft SQL Server Management Studio that would help to improve your productivity on the thing done frequently.

Action KeyBoard ShortCut
Display the context menu/mouse Right Click SHIFT+F10
Display the New File dialog box to create a file CTRL+N
Display the Query Designer CTRL+SHIFT+Q
Toggle full screen mode SHIFT+ALT+ENTER
Scroll text up one line CTRL+UP ARROW
Scroll text down one line CTRL+DOWN ARROW
Reverse the last editing action CTRL+Z
Restore the previously undone edit CTRL+SHIFT+Z or ALT+SHIFT+BACKSPACE or CTRL+Y
Save all CTRL+SHIFT+S
Delete all text in the current file CTRL+SHIFT+DEL
Display the Go To Line dialog box CTRL+G
Increase line indent TAB
Decrease line indent SHIFT+TAB
Make the selected text upper case CTRL+SHIFT+U
Make the selected text lower case CTRL+SHIFT+L
Make the selected text a comment CTRL+K, CTRL+C
Uncomment the selected text CTRL+K, CTRL + U
Open a new query with current connection CTRL+Q
Execute the selected portion of the query editor or the entire query editor if nothing is selected F5 or CTRL+E or ALT+X
Display the estimated execution plan CTRL+L
Cancel the executing query ALT+BREAK
Include actual execution plan in the query output CTRL+M
Output results in a grid CTRL+D
Output results in text format CTRL+T
Output results to a file CTRL+SHIFT+F
Show or hide the query results pane CTRL+R
Toggle between query and results pane F6
Move to the next active window in Management Studio CTRL+F6
Display the Find dialog box CTRL+F
Display the Replace dialog box CTRL+H
Start incremental search. Type the characters to search for or press CTRL+I to search for characters from the previous search CTRL+I
Find the next occurrence of the previous search text F3
Find the previous occurrence of the search text SHIFT+F3
Find the next occurrence of the currently selected text CTRL+F3
Find the previous occurrence of the currently selected text CTRL+SHIFT+F3
Display the Replace in Files dialog box CTRL+SHIFT+H
Reverse incremental search so it starts at the bottom of the file and searches to the top CTRL+SHIFT+I
Select or clear the Search up option in Find and Replace ALT+F3, B
Stop the Find in Files search ALT+F3, S
Select or clear the Find whole word option in Find and Replace ALT+F3, W
Selects or clears the Wildcard option in Find and Replace ALT+F3, P