I find these following shortcut keys essential.
ctrl + using mouse to select where to add cursors.
2.Select multiple text (and automatically add cursors)
Double click to select the first + hold
ctrl + double click others to select more.
3.Select many similar texts (change variable name at many place at once)
Place the cursor at the text +
ctrl + D to select it, then
ctrl + D again to select the next instance of the text. Repeat to select more.
ctrl + J at where I want to join.
5.Delete line (even blank line)
ctrl + X.
6.Move line (place the cursor somewhere in the line)/ block of lines (highlight them first)
ctrl + shift + up/down.
7.Dublicate a line
Place the cure sure some where in the line, then
ctrl + shift + D
ctrl + ] / ctrl + [
9. Toggle between commenting out and uncommenting
ctrl + /.
10.Open file in current open project
ctrl + P, then search for its name.