User554930053 posted
Hello,
Realize my response is a year late. I'm beginning to use Pinegrow now and I love it. I'm also running into the same situation.
Unfortunately you might not find something that is the best for both worlds so let me offer this suggestion:
Use a Compare tool like BeyondCompare or WinMerge.
Keep too copies of the file you are editing, one that loads in Pinegrow, the other with the complete ASP/Razor syntax.
Make design changes in Pinegrow and merge the changes using a comparison tool with the ASP/Razor syntax file to utilize your goodies.
Keep the common HTML/Bootstrap/JavaScript (i.e. non ASP/Razor stuff) in sync between the too files to the best of your ability.