+
+" Change to ts=2 with Q2.
+map Q2 :se ts=2<CR>:<CR>
+" Change to ts=4 with Q4.
+map Q4 :se ts=4<CR>:<CR>
+" Change to ts=8 with Q8.
+map Q8 :se ts=8<CR>:<CR>
+" Change to ts=16 with Q6.
+map Q6 :se ts=16<CR>:<CR>
+" Change to ts=32 with Q3.
+map Q3 :se ts=32<CR>:<CR>
+" Toggle paste mode with Qp.
+map Qp :se paste!<CR>:<CR>
+" Swap case-sensitivity with Qc.
+map Qc :call Invert_Case()<CR>:<CR>
+" Change number mode with Qn.
+map Qn :se number!<CR>:<CR>
+" Expand or shrink window size with Q> and Q<. For use after toggling number.
+map Q> :exe 'se columns+=' . numberwidth<CR>:<CR>
+map Q< :exe 'se columns-=' . numberwidth<CR>:<CR>
+" Clear search pattern with Q/.
+map Q/ :let @/=""<CR>:<CR>
+