I was just experimenting so there is probably a better/more robust/more elegant solution.
catalyst.pl MyApp
cd MyApp
mkdir -p lib/Catalyst/Helper/View
wget --output-document lib/Catalyst/Helper/View/TTMySite.pm http://api.metacpan.org/source/JJNAPIORK/Catalyst-View-TT-0.41/lib/Catalyst/Helper/View/TTSite.pm
vim lib/Catalyst/Helper/View/TTMySite.pm
1. Change package name from TTSite to TTMySite
2. change the template source according to your requirements./script/myapp_create.pl view HTML TTMySite