Hey @ianboyte, I've done this for many of my clients and the solution doesn't require injecting custom HTML. I'm quite busy right now, but I'll try to write and publish a tutorial over the coming days for you
I'm sure you have already solved your problem, but for everyone else that might come across this post in the future, I just published a blog post explaining of how you can set it up:
Hi @kris, did you ever find time to write a tutorial for this? I'm working on a project that needs a Hubspot form slice and I'm running into issues with having multiple forms on the same page.
@kris Perfect timing, thank you! I couldn't find a solution to using a custom target id, so multiple slices can be used on the same page, but everything else works great.