how can we inject in nested tag?

[elhampour]

<environment names="Development"><!-- StartLib:css --><!-- Endlib:css --><!-- StartCustomlib:css --><!-- EndCustomlib:css --></environment>

<environment names="Production"><!-- Minified:css --><!-- EndMinified:css --><!-- Minified:js --><!-- EndMinified:js --></environment>

[ansballard]

Not really following the use case here. When would you want to inject both your dev and production files? Regardless, I don't think it's possible to use nested tags.