Developers don't review suggestions or bugs posted on the forum.
Bug tracker:
github.com/Scirra/Construct-3-bugs/issues
And here is the suggestions platform. But note that only ideas with lots of upvotes will be considered:
construct3-21h2.ideas.aha.io
Add to objects comment field
Yeah, this would be pretty useful.
Allow functions to be moved to another layout
Press Ctrl-X to cut the function to clipboard, then press Ctrl-V to paste it to another event sheet. It will be pasted with its original name, and all calls of this function will be restored.