SlowCheetah is great, but I'm trying to get it to work with Sayed's custom transformation to support replacing partial text.
When I try to preview a transform I get "There was an error processing the transformation." I'm just using the project here as I would like to use both.
Currently preview for custom transforms are not supported for web.config. Sorry. This would actually be very challenging from a technical perspective as well. I have created an issue for this on the project site at https://github.com/sayedihashimi/slow-cheetah/issues/6, but it won't be implemented anytime soon.