This script allows you to record up to 10 demos in a row.

alias rec "demo1"
alias demo1 "record demo1; echo Recording demo 1; alias rec enddemo1"
alias enddemo1 "echo End recording demo 1; wait; wait; wait; stop demo; alias rec demo2"
alias demo2 "record demo2; echo Recording demo 2; alias rec enddemo2"
alias enddemo2 "echo End recording demo 2; wait; wait; wait; stop demo; alias rec demo3"
alias demo3 "record demo3; echo Recording demo 3; alias rec enddemo3"
alias enddemo3 "echo End recording demo 3; wait; wait; wait; stop demo; alias rec demo4"
alias demo4 "record demo4; echo Recording demo 4; alias rec enddemo4"
alias enddemo4 "echo End recording demo 4; wait; wait; wait; stop demo; alias rec demo5"
alias demo5 "record demo5; echo Recording demo 5; alias rec enddemo5"
alias enddemo5 "echo End recording demo 5; wait; wait; wait; stop demo; alias rec demo6"
alias demo6 "record demo6; echo Recording demo 6; alias rec enddemo6"
alias enddemo6 "echo End recording demo 6; wait; wait; wait; stop demo; alias rec demo7"
alias demo7 "record demo7; echo Recording demo 7; alias rec enddemo7"
alias enddemo7 "echo End recording demo 7; wait; wait; wait; stop demo; alias rec demo8"
alias demo8 "record demo8; echo Recording demo 8; alias rec enddemo8"
alias enddemo8 "echo End recording demo 8; wait; wait; wait; stop demo; alias rec demo9"
alias demo9 "record demo9; echo Recording demo 9; alias rec enddemo9"
alias enddemo9 "echo End recording demo 9; wait; wait; wait; stop demo; alias rec demo10"
alias demo10 "record demo10; echo Recording demo 10; alias rec enddemo10"
alias enddemo10 "echo End recording demo 10; wait; wait; wait; stop demo; alias rec demo1"

bind "f12" "rec"