Adding xpath / xslt transformations without using drag/drop

Summary

It's quicker for me to type out these transformations, but whenever I do so it treats my entry as a string.

Content

It's quicker for me to type out these transformations, but whenever I do so it treats my entry as a string.  Is there any way to prevent this without exporting the iar then importing it?  for example, if I copy and paste

<xsl:value-of select = "fn:adjust-dateTime-to-timezone(fn:current-dateTime(), xsd:dayTimeDuration('-PT4H'))">

 

It will attempt to render that as a string literal, not an xsl value.  

 

Additionally, whats the best way to report a bug that doesn't necessarily affect me but that I found in the course of using the product?  For example, I am integrating with a SOAP service.  The WSDL tested and validated fine.  It was sending a request payload like