That's too bad! For me, it's the major functionality missing in Radzen IDE and not just a "nice-to-have"-feature. It's also inconsistent, that you can copy and paste controls and parts of the page, but not the event code lines.
For small applications it's not the point, but if you are developing really complex applications it's just so frustrating and time-consuming to define everything again, what you have already done before. And using an external tool is a workaround, but not as comfortable as it could be.
But I don't always want to complain: I love Radzen, you have done a really great work here and your response for fixing bugs is really fast! That's why I chose you against other competitors for a paid subscription. But it would be great if you were more responsive to the needs of your customers.
I think a poll for some the best feature requests from you customers would be nice. So you could let the users decide which feature will get a top priority for the next release.
Thanks for the tip, I'll give it a try! Currently, I'm using Notepad++ with the JSON Viewer plugin.