Hi,
You can have different template or layout but not derivate template settings.
Layout is the file you find in components/com_virtuemart/view/YOURVIEW/tmpl/default.php folder for each component
or in the templates/YOURTEMPLATE/html/com_virtuemart/YOURVIEW
You can do copy of default.php and all associate file to MYLAYOUT.php and use one or another at anytime on changing the setting in virtuemart layouts settings eg. fro product :
product edit form > Product Details Page setting.
TO change ordering, you cannot have multiple default ordering in vrituemart. I only give a possible way to change ordering directly in VM.
If you need to change ordering, i think the only solution is to write a system plugin, to check right order and change the ordering before calling the model. Or you need to hack the core virtuemart files.
Greets,
Patrick